Commit the source-map library.

40 files changed, 4587 insertions, 0 deletions

diff --git a/tools/node_modules/source-map/.npmignore b/tools/node_modules/source-map/.npmignore
new file mode 100644
index 00000000..3dddf3f6
--- /dev/null
+++ b/tools/node_modules/source-map/.npmignore
@@ -0,0 +1,2 @@
+dist/*
+node_modules/*
diff --git a/tools/node_modules/source-map/.travis.yml b/tools/node_modules/source-map/.travis.yml
new file mode 100644
index 00000000..ddc9c4f9
--- /dev/null
+++ b/tools/node_modules/source-map/.travis.yml
@@ -0,0 +1,4 @@
+language: node_js
+node_js:
+  - 0.8
+  - "0.10"
\ No newline at end of file
diff --git a/tools/node_modules/source-map/CHANGELOG.md b/tools/node_modules/source-map/CHANGELOG.md
new file mode 100644
index 00000000..140fe0cf
--- /dev/null
+++ b/tools/node_modules/source-map/CHANGELOG.md
@@ -0,0 +1,58 @@
+# Change Log
+
+## 0.1.22
+
+* Ignore duplicate mappings in SourceMapGenerator. Fixes github issue 21.
+
+## 0.1.21
+
+* Fixed handling of sources that start with a slash so that they are relative to
+  the source root's host.
+
+## 0.1.20
+
+* Fixed github issue #43: absolute URLs aren't joined with the source root
+  anymore.
+
+## 0.1.19
+
+* Using Travis CI to run tests.
+
+## 0.1.18
+
+* Fixed a bug in the handling of sourceRoot.
+
+## 0.1.17
+
+* Added SourceNode.fromStringWithSourceMap.
+
+## 0.1.16
+
+* Added missing documentation.
+
+* Fixed the generating of empty mappings in SourceNode.
+
+## 0.1.15
+
+* Added SourceMapGenerator.applySourceMap.
+
+## 0.1.14
+
+* The sourceRoot is now handled consistently.
+
+## 0.1.13
+
+* Added SourceMapGenerator.fromSourceMap.
+
+## 0.1.12
+
+* SourceNode now generates empty mappings too.
+
+## 0.1.11
+
+* Added name support to SourceNode.
+
+## 0.1.10
+
+* Added sourcesContent support to the customer and generator.
+
diff --git a/tools/node_modules/source-map/LICENSE b/tools/node_modules/source-map/LICENSE
new file mode 100644
index 00000000..ed1b7cf2
--- /dev/null
+++ b/tools/node_modules/source-map/LICENSE
@@ -0,0 +1,28 @@
+
+Copyright (c) 2009-2011, Mozilla Foundation and contributors
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+* Neither the names of the Mozilla Foundation nor the names of project
+  contributors may be used to endorse or promote products derived from this
+  software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/tools/node_modules/source-map/Makefile.dryice.js b/tools/node_modules/source-map/Makefile.dryice.js
new file mode 100644
index 00000000..8973ac2c
--- /dev/null
+++ b/tools/node_modules/source-map/Makefile.dryice.js
@@ -0,0 +1,166 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+var path = require('path');
+var fs = require('fs');
+var copy = require('dryice').copy;
+
+function removeAmdefine(src) {
+  src = String(src).replace(
+    /if\s*\(typeof\s*define\s*!==\s*'function'\)\s*{\s*var\s*define\s*=\s*require\('amdefine'\)\(module\);\s*}\s*/g,
+    '');
+  src = src.replace(
+    /\b(define\(.*)('amdefine',?)/gm,
+    '$1');
+  return src;
+}
+removeAmdefine.onRead = true;
+
+function makeNonRelative(src) {
+  return src
+    .replace(/require\('.\//g, 'require(\'source-map/')
+    .replace(/\.\.\/\.\.\/lib\//g, '');
+}
+makeNonRelative.onRead = true;
+
+function buildBrowser() {
+  console.log('\nCreating dist/source-map.js');
+
+  var project = copy.createCommonJsProject({
+    roots: [ path.join(__dirname, 'lib') ]
+  });
+
+  copy({
+    source: [
+      'build/mini-require.js',
+      {
+        project: project,
+        require: [ 'source-map/source-map-generator',
+                   'source-map/source-map-consumer',
+                   'source-map/source-node']
+      },
+      'build/suffix-browser.js'
+    ],
+    filter: [
+      copy.filter.moduleDefines,
+      removeAmdefine
+    ],
+    dest: 'dist/source-map.js'
+  });
+}
+
+function buildBrowserMin() {
+  console.log('\nCreating dist/source-map.min.js');
+
+  copy({
+    source: 'dist/source-map.js',
+    filter: copy.filter.uglifyjs,
+    dest: 'dist/source-map.min.js'
+  });
+}
+
+function buildFirefox() {
+  console.log('\nCreating dist/SourceMap.jsm');
+
+  var project = copy.createCommonJsProject({
+    roots: [ path.join(__dirname, 'lib') ]
+  });
+
+  copy({
+    source: [
+      'build/prefix-source-map.jsm',
+      {
+        project: project,
+        require: [ 'source-map/source-map-consumer',
+                   'source-map/source-map-generator',
+                   'source-map/source-node' ]
+      },
+      'build/suffix-source-map.jsm'
+    ],
+    filter: [
+      copy.filter.moduleDefines,
+      removeAmdefine,
+      makeNonRelative
+    ],
+    dest: 'dist/SourceMap.jsm'
+  });
+
+  // Create dist/test/Utils.jsm
+  console.log('\nCreating dist/test/Utils.jsm');
+
+  project = copy.createCommonJsProject({
+    roots: [ __dirname, path.join(__dirname, 'lib') ]
+  });
+
+  copy({
+    source: [
+      'build/prefix-utils.jsm',
+      'build/assert-shim.js',
+      {
+        project: project,
+        require: [ 'test/source-map/util' ]
+      },
+      'build/suffix-utils.jsm'
+    ],
+    filter: [
+      copy.filter.moduleDefines,
+      removeAmdefine,
+      makeNonRelative
+    ],
+    dest: 'dist/test/Utils.jsm'
+  });
+
+  function isTestFile(f) {
+    return /^test\-.*?\.js/.test(f);
+  }
+
+  var testFiles = fs.readdirSync(path.join(__dirname, 'test', 'source-map')).filter(isTestFile);
+
+  testFiles.forEach(function (testFile) {
+    console.log('\nCreating', path.join('dist', 'test', testFile.replace(/\-/g, '_')));
+
+    copy({
+      source: [
+        'build/test-prefix.js',
+        path.join('test', 'source-map', testFile),
+        'build/test-suffix.js'
+      ],
+      filter: [
+        removeAmdefine,
+        makeNonRelative,
+        function (input, source) {
+          return input.replace('define(',
+                               'define("'
+                               + path.join('test', 'source-map', testFile.replace(/\.js$/, ''))
+                               + '", ["require", "exports", "module"], ');
+        },
+        function (input, source) {
+          return input.replace('{THIS_MODULE}', function () {
+            return "test/source-map/" + testFile.replace(/\.js$/, '');
+          });
+        }
+      ],
+      dest: path.join('dist', 'test', testFile.replace(/\-/g, '_'))
+    });
+  });
+}
+
+function ensureDir(name) {
+  var dirExists = false;
+  try {
+    dirExists = fs.statSync(name).isDirectory();
+  } catch (err) {}
+
+  if (!dirExists) {
+    fs.mkdirSync(name, 0777);
+  }
+}
+
+ensureDir("dist");
+ensureDir("dist/test");
+buildFirefox();
+buildBrowser();
+buildBrowserMin();
diff --git a/tools/node_modules/source-map/README.md b/tools/node_modules/source-map/README.md
new file mode 100644
index 00000000..95e6787a
--- /dev/null
+++ b/tools/node_modules/source-map/README.md
@@ -0,0 +1,347 @@
+# Source Map
+
+This is a library to generate and consume the source map format
+[described here][format].
+
+[Learn more here][feature].
+
+This library was written in the Asynchronous Module Definition
+format. It should work in the following environments:
+
+* Modern Browsers (either after the build, or with an AMD loader such as
+  RequireJS)
+
+* Inside Firefox (as a JSM file, after the build)
+
+* With NodeJS versions 0.8.X and higher
+
+## Installing with NPM (for use with NodeJS)
+
+Simply
+
+    $ npm install source-map
+
+Or, if you'd like to hack on this library and have it installed via npm so you
+can try out your changes:
+
+    $ git clone https://fitzgen@github.com/mozilla/source-map.git
+    $ cd source-map
+    $ npm link .
+
+## Building from Source (for everywhere else)
+
+Install Node and then run
+
+    $ git clone https://fitzgen@github.com/mozilla/source-map.git
+    $ cd source-map
+    $ npm link .
+
+Next, run
+
+    $ node Makefile.dryice.js`
+
+This should create the following files:
+
+* `dist/source-map.js` - The unminified browser version.
+
+* `dist/source-map.min.js` - The minified browser version.
+
+* `dist/SourceMap.jsm` - The JavaScript Module for inclusion in Firefox
+  source.
+
+## API
+
+Get a reference to the module:
+
+    // NodeJS
+    var sourceMap = require('source-map');
+
+    // Browser builds
+    var sourceMap = window.sourceMap;
+
+    // Inside Firefox
+    let sourceMap = {};
+    Components.utils.import('resource:///modules/devtools/SourceMap.jsm', sourceMap);
+
+### SourceMapConsumer
+
+A SourceMapConsumer instance represents a parsed source map which we can query
+for information about the original file positions by giving it a file position
+in the generated source.
+
+#### new SourceMapConsumer(rawSourceMap)
+
+The only parameter is the raw source map (either as a string which can be
+`JSON.parse`'d, or an object). According to the spec, source maps have the
+following attributes:
+
+* `version`: Which version of the source map spec this map is following.
+
+* `sources`: An array of URLs to the original source files.
+
+* `names`: An array of identifiers which can be referrenced by individual
+  mappings.
+
+* `sourceRoot`: Optional. The URL root from which all sources are relative.
+
+* `sourcesContent`: Optional. An array of contents of the original source files.
+
+* `mappings`: A string of base64 VLQs which contain the actual mappings.
+
+* `file`: The generated filename this source map is associated with.
+
+#### SourceMapConsumer.prototype.originalPositionFor(generatedPosition)
+
+Returns the original source, line, and column information for the generated
+source's line and column positions provided. The only argument is an object with
+the following properties:
+
+* `line`: The line number in the generated source.
+
+* `column`: The column number in the generated source.
+
+and an object is returned with the following properties:
+
+* `source`: The original source file, or null if this information is not
+  available.
+
+* `line`: The line number in the original source, or null if this information is
+  not available.
+
+* `column`: The column number in the original source, or null or null if this
+  information is not available.
+
+* `name`: The original identifier, or null if this information is not available.
+
+#### SourceMapConsumer.prototype.generatedPositionFor(originalPosition)
+
+Returns the generated line and column information for the original source,
+line, and column positions provided. The only argument is an object with
+the following properties:
+
+* `source`: The filename of the original source.
+
+* `line`: The line number in the original source.
+
+* `column`: The column number in the original source.
+
+and an object is returned with the following properties:
+
+* `line`: The line number in the generated source, or null.
+
+* `column`: The column number in the generated source, or null.
+
+#### SourceMapConsumer.prototype.sourceContentFor(source)
+
+Returns the original source content for the source provided. The only
+argument is the URL of the original source file.
+
+#### SourceMapConsumer.prototype.eachMapping(callback, context, order)
+
+Iterate over each mapping between an original source/line/column and a
+generated line/column in this source map.
+
+* `callback`: The function that is called with each mapping.
+
+* `context`: Optional. If specified, this object will be the value of `this`
+  every time that `callback` is called.
+
+* `order`: Either `SourceMapConsumer.GENERATED_ORDER` or
+  `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to iterate over
+  the mappings sorted by the generated file's line/column order or the
+  original's source/line/column order, respectively. Defaults to
+  `SourceMapConsumer.GENERATED_ORDER`.
+
+### SourceMapGenerator
+
+An instance of the SourceMapGenerator represents a source map which is being
+built incrementally.
+
+#### new SourceMapGenerator(startOfSourceMap)
+
+To create a new one, you must pass an object with the following properties:
+
+* `file`: The filename of the generated source that this source map is
+  associated with.
+
+* `sourceRoot`: An optional root for all relative URLs in this source map.
+
+#### SourceMapGenerator.fromSourceMap(sourceMapConsumer)
+
+Creates a new SourceMapGenerator based on a SourceMapConsumer
+
+* `sourceMapConsumer` The SourceMap.
+
+#### SourceMapGenerator.prototype.addMapping(mapping)
+
+Add a single mapping from original source line and column to the generated
+source's line and column for this source map being created. The mapping object
+should have the following properties:
+
+* `generated`: An object with the generated line and column positions.
+
+* `original`: An object with the original line and column positions.
+
+* `source`: The original source file (relative to the sourceRoot).
+
+* `name`: An optional original token name for this mapping.
+
+#### SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent)
+
+Set the source content for an original source file.
+
+* `sourceFile` the URL of the original source file.
+
+* `sourceContent` the content of the source file.
+
+#### SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile])
+
+Applies a SourceMap for a source file to the SourceMap.
+Each mapping to the supplied source file is rewritten using the
+supplied SourceMap. Note: The resolution for the resulting mappings
+is the minimium of this map and the supplied map.
+
+* `sourceMapConsumer`: The SourceMap to be applied.
+
+* `sourceFile`: Optional. The filename of the source file.
+  If omitted, sourceMapConsumer.file will be used.
+
+#### SourceMapGenerator.prototype.toString()
+
+Renders the source map being generated to a string.
+
+### SourceNode
+
+SourceNodes provide a way to abstract over interpolating and/or concatenating
+snippets of generated JavaScript source code, while maintaining the line and
+column information associated between those snippets and the original source
+code. This is useful as the final intermediate representation a compiler might
+use before outputting the generated JS and source map.
+
+#### new SourceNode(line, column, source[, chunk[, name]])
+
+* `line`: The original line number associated with this source node, or null if
+  it isn't associated with an original line.
+
+* `column`: The original column number associated with this source node, or null
+  if it isn't associated with an original column.
+
+* `source`: The original source's filename.
+
+* `chunk`: Optional. Is immediately passed to `SourceNode.prototype.add`, see
+  below.
+
+* `name`: Optional. The original identifier.
+
+#### SourceNode.fromStringWithSourceMap(code, sourceMapConsumer)
+
+Creates a SourceNode from generated code and a SourceMapConsumer.
+
+* `code`: The generated code
+
+* `sourceMapConsumer` The SourceMap for the generated code
+
+#### SourceNode.prototype.add(chunk)
+
+Add a chunk of generated JS to this source node.
+
+* `chunk`: A string snippet of generated JS code, another instance of
+   `SourceNode`, or an array where each member is one of those things.
+
+#### SourceNode.prototype.prepend(chunk)
+
+Prepend a chunk of generated JS to this source node.
+
+* `chunk`: A string snippet of generated JS code, another instance of
+   `SourceNode`, or an array where each member is one of those things.
+
+#### SourceNode.prototype.setSourceContent(sourceFile, sourceContent)
+
+Set the source content for a source file. This will be added to the
+`SourceMap` in the `sourcesContent` field.
+
+* `sourceFile`: The filename of the source file
+
+* `sourceContent`: The content of the source file
+
+#### SourceNode.prototype.walk(fn)
+
+Walk over the tree of JS snippets in this node and its children. The walking
+function is called once for each snippet of JS and is passed that snippet and
+the its original associated source's line/column location.
+
+* `fn`: The traversal function.
+
+#### SourceNode.prototype.walkSourceContents(fn)
+
+Walk over the tree of SourceNodes. The walking function is called for each
+source file content and is passed the filename and source content.
+
+* `fn`: The traversal function.
+
+#### SourceNode.prototype.join(sep)
+
+Like `Array.prototype.join` except for SourceNodes. Inserts the separator
+between each of this source node's children.
+
+* `sep`: The separator.
+
+#### SourceNode.prototype.replaceRight(pattern, replacement)
+
+Call `String.prototype.replace` on the very right-most source snippet. Useful
+for trimming whitespace from the end of a source node, etc.
+
+* `pattern`: The pattern to replace.
+
+* `replacement`: The thing to replace the pattern with.
+
+#### SourceNode.prototype.toString()
+
+Return the string representation of this source node. Walks over the tree and
+concatenates all the various snippets together to one string.
+
+### SourceNode.prototype.toStringWithSourceMap(startOfSourceMap)
+
+Returns the string representation of this tree of source nodes, plus a
+SourceMapGenerator which contains all the mappings between the generated and
+original sources.
+
+The arguments are the same as those to `new SourceMapGenerator`.
+
+## Tests
+
+[![Build Status](https://travis-ci.org/mozilla/source-map.png?branch=master)](https://travis-ci.org/mozilla/source-map)
+
+Install NodeJS version 0.8.0 or greater, then run `node test/run-tests.js`.
+
+To add new tests, create a new file named `test/test-<your new test name>.js`
+and export your test functions with names that start with "test", for example
+
+    exports["test doing the foo bar"] = function (assert, util) {
+      ...
+    };
+
+The new test will be located automatically when you run the suite.
+
+The `util` argument is the test utility module located at `test/source-map/util`.
+
+The `assert` argument is a cut down version of node's assert module. You have
+access to the following assertion functions:
+
+* `doesNotThrow`
+
+* `equal`
+
+* `ok`
+
+* `strictEqual`
+
+* `throws`
+
+(The reason for the restricted set of test functions is because we need the
+tests to run inside Firefox's test suite as well and so the assert module is
+shimmed in that environment. See `build/assert-shim.js`.)
+
+[format]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit
+[feature]: https://wiki.mozilla.org/DevTools/Features/SourceMap
+[Dryice]: https://github.com/mozilla/dryice
diff --git a/tools/node_modules/source-map/build/assert-shim.js b/tools/node_modules/source-map/build/assert-shim.js
new file mode 100644
index 00000000..daa1a623
--- /dev/null
+++ b/tools/node_modules/source-map/build/assert-shim.js
@@ -0,0 +1,56 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+define('test/source-map/assert', ['exports'], function (exports) {
+
+  let do_throw = function (msg) {
+    throw new Error(msg);
+  };
+
+  exports.init = function (throw_fn) {
+    do_throw = throw_fn;
+  };
+
+  exports.doesNotThrow = function (fn) {
+    try {
+      fn();
+    }
+    catch (e) {
+      do_throw(e.message);
+    }
+  };
+
+  exports.equal = function (actual, expected, msg) {
+    msg = msg || String(actual) + ' != ' + String(expected);
+    if (actual != expected) {
+      do_throw(msg);
+    }
+  };
+
+  exports.ok = function (val, msg) {
+    msg = msg || String(val) + ' is falsey';
+    if (!Boolean(val)) {
+      do_throw(msg);
+    }
+  };
+
+  exports.strictEqual = function (actual, expected, msg) {
+    msg = msg || String(actual) + ' !== ' + String(expected);
+    if (actual !== expected) {
+      do_throw(msg);
+    }
+  };
+
+  exports.throws = function (fn) {
+    try {
+      fn();
+      do_throw('Expected an error to be thrown, but it wasn\'t.');
+    }
+    catch (e) {
+    }
+  };
+
+});
diff --git a/tools/node_modules/source-map/build/mini-require.js b/tools/node_modules/source-map/build/mini-require.js
new file mode 100644
index 00000000..0daf4537
--- /dev/null
+++ b/tools/node_modules/source-map/build/mini-require.js
@@ -0,0 +1,152 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+
+/**
+ * Define a module along with a payload.
+ * @param {string} moduleName Name for the payload
+ * @param {ignored} deps Ignored. For compatibility with CommonJS AMD Spec
+ * @param {function} payload Function with (require, exports, module) params
+ */
+function define(moduleName, deps, payload) {
+  if (typeof moduleName != "string") {
+    throw new TypeError('Expected string, got: ' + moduleName);
+  }
+
+  if (arguments.length == 2) {
+    payload = deps;
+  }
+
+  if (moduleName in define.modules) {
+    throw new Error("Module already defined: " + moduleName);
+  }
+  define.modules[moduleName] = payload;
+};
+
+/**
+ * The global store of un-instantiated modules
+ */
+define.modules = {};
+
+
+/**
+ * We invoke require() in the context of a Domain so we can have multiple
+ * sets of modules running separate from each other.
+ * This contrasts with JSMs which are singletons, Domains allows us to
+ * optionally load a CommonJS module twice with separate data each time.
+ * Perhaps you want 2 command lines with a different set of commands in each,
+ * for example.
+ */
+function Domain() {
+  this.modules = {};
+  this._currentModule = null;
+}
+
+(function () {
+
+  /**
+   * Lookup module names and resolve them by calling the definition function if
+   * needed.
+   * There are 2 ways to call this, either with an array of dependencies and a
+   * callback to call when the dependencies are found (which can happen
+   * asynchronously in an in-page context) or with a single string an no callback
+   * where the dependency is resolved synchronously and returned.
+   * The API is designed to be compatible with the CommonJS AMD spec and
+   * RequireJS.
+   * @param {string[]|string} deps A name, or names for the payload
+   * @param {function|undefined} callback Function to call when the dependencies
+   * are resolved
+   * @return {undefined|object} The module required or undefined for
+   * array/callback method
+   */
+  Domain.prototype.require = function(deps, callback) {
+    if (Array.isArray(deps)) {
+      var params = deps.map(function(dep) {
+        return this.lookup(dep);
+      }, this);
+      if (callback) {
+        callback.apply(null, params);
+      }
+      return undefined;
+    }
+    else {
+      return this.lookup(deps);
+    }
+  };
+
+  function normalize(path) {
+    var bits = path.split('/');
+    var i = 1;
+    while (i < bits.length) {
+      if (bits[i] === '..') {
+        bits.splice(i-1, 1);
+      } else if (bits[i] === '.') {
+        bits.splice(i, 1);
+      } else {
+        i++;
+      }
+    }
+    return bits.join('/');
+  }
+
+  function join(a, b) {
+    a = a.trim();
+    b = b.trim();
+    if (/^\//.test(b)) {
+      return b;
+    } else {
+      return a.replace(/\/*$/, '/') + b;
+    }
+  }
+
+  function dirname(path) {
+    var bits = path.split('/');
+    bits.pop();
+    return bits.join('/');
+  }
+
+  /**
+   * Lookup module names and resolve them by calling the definition function if
+   * needed.
+   * @param {string} moduleName A name for the payload to lookup
+   * @return {object} The module specified by aModuleName or null if not found.
+   */
+  Domain.prototype.lookup = function(moduleName) {
+    if (/^\./.test(moduleName)) {
+      moduleName = normalize(join(dirname(this._currentModule), moduleName));
+    }
+
+    if (moduleName in this.modules) {
+      var module = this.modules[moduleName];
+      return module;
+    }
+
+    if (!(moduleName in define.modules)) {
+      throw new Error("Module not defined: " + moduleName);
+    }
+
+    var module = define.modules[moduleName];
+
+    if (typeof module == "function") {
+      var exports = {};
+      var previousModule = this._currentModule;
+      this._currentModule = moduleName;
+      module(this.require.bind(this), exports, { id: moduleName, uri: "" });
+      this._currentModule = previousModule;
+      module = exports;
+    }
+
+    // cache the resulting module object for next time
+    this.modules[moduleName] = module;
+
+    return module;
+  };
+
+}());
+
+define.Domain = Domain;
+define.globalDomain = new Domain();
+var require = define.globalDomain.require.bind(define.globalDomain);
diff --git a/tools/node_modules/source-map/build/prefix-source-map.jsm b/tools/node_modules/source-map/build/prefix-source-map.jsm
new file mode 100644
index 00000000..ee2539d8
--- /dev/null
+++ b/tools/node_modules/source-map/build/prefix-source-map.jsm
@@ -0,0 +1,20 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+
+/*
+ * WARNING!
+ *
+ * Do not edit this file directly, it is built from the sources at
+ * https://github.com/mozilla/source-map/
+ */
+
+///////////////////////////////////////////////////////////////////////////////
+
+
+this.EXPORTED_SYMBOLS = [ "SourceMapConsumer", "SourceMapGenerator", "SourceNode" ];
+
+Components.utils.import('resource://gre/modules/devtools/Require.jsm');
diff --git a/tools/node_modules/source-map/build/prefix-utils.jsm b/tools/node_modules/source-map/build/prefix-utils.jsm
new file mode 100644
index 00000000..80341d45
--- /dev/null
+++ b/tools/node_modules/source-map/build/prefix-utils.jsm
@@ -0,0 +1,18 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+
+/*
+ * WARNING!
+ *
+ * Do not edit this file directly, it is built from the sources at
+ * https://github.com/mozilla/source-map/
+ */
+
+Components.utils.import('resource://gre/modules/devtools/Require.jsm');
+Components.utils.import('resource://gre/modules/devtools/SourceMap.jsm');
+
+this.EXPORTED_SYMBOLS = [ "define", "runSourceMapTests" ];
diff --git a/tools/node_modules/source-map/build/suffix-browser.js b/tools/node_modules/source-map/build/suffix-browser.js
new file mode 100644
index 00000000..cf6cde7c
--- /dev/null
+++ b/tools/node_modules/source-map/build/suffix-browser.js
@@ -0,0 +1,8 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+///////////////////////////////////////////////////////////////////////////////
+
+window.sourceMap = {
+  SourceMapConsumer: require('source-map/source-map-consumer').SourceMapConsumer,
+  SourceMapGenerator: require('source-map/source-map-generator').SourceMapGenerator,
+  SourceNode: require('source-map/source-node').SourceNode
+};
diff --git a/tools/node_modules/source-map/build/suffix-source-map.jsm b/tools/node_modules/source-map/build/suffix-source-map.jsm
new file mode 100644
index 00000000..cf3c2d8d
--- /dev/null
+++ b/tools/node_modules/source-map/build/suffix-source-map.jsm
@@ -0,0 +1,6 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+///////////////////////////////////////////////////////////////////////////////
+
+this.SourceMapConsumer = require('source-map/source-map-consumer').SourceMapConsumer;
+this.SourceMapGenerator = require('source-map/source-map-generator').SourceMapGenerator;
+this.SourceNode = require('source-map/source-node').SourceNode;
diff --git a/tools/node_modules/source-map/build/suffix-utils.jsm b/tools/node_modules/source-map/build/suffix-utils.jsm
new file mode 100644
index 00000000..b31b84cb
--- /dev/null
+++ b/tools/node_modules/source-map/build/suffix-utils.jsm
@@ -0,0 +1,21 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+function runSourceMapTests(modName, do_throw) {
+  let mod = require(modName);
+  let assert = require('test/source-map/assert');
+  let util = require('test/source-map/util');
+
+  assert.init(do_throw);
+
+  for (let k in mod) {
+    if (/^test/.test(k)) {
+      mod[k](assert, util);
+    }
+  }
+
+}
+this.runSourceMapTests = runSourceMapTests;
diff --git a/tools/node_modules/source-map/build/test-prefix.js b/tools/node_modules/source-map/build/test-prefix.js
new file mode 100644
index 00000000..1b13f300
--- /dev/null
+++ b/tools/node_modules/source-map/build/test-prefix.js
@@ -0,0 +1,8 @@
+/*
+ * WARNING!
+ *
+ * Do not edit this file directly, it is built from the sources at
+ * https://github.com/mozilla/source-map/
+ */
+
+Components.utils.import('resource://test/Utils.jsm');
diff --git a/tools/node_modules/source-map/build/test-suffix.js b/tools/node_modules/source-map/build/test-suffix.js
new file mode 100644
index 00000000..bec2de3f
--- /dev/null
+++ b/tools/node_modules/source-map/build/test-suffix.js
@@ -0,0 +1,3 @@
+function run_test() {
+  runSourceMapTests('{THIS_MODULE}', do_throw);
+}
diff --git a/tools/node_modules/source-map/lib/source-map.js b/tools/node_modules/source-map/lib/source-map.js
new file mode 100644
index 00000000..121ad241
--- /dev/null
+++ b/tools/node_modules/source-map/lib/source-map.js
@@ -0,0 +1,8 @@
+/*
+ * Copyright 2009-2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE.txt or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+exports.SourceMapGenerator = require('./source-map/source-map-generator').SourceMapGenerator;
+exports.SourceMapConsumer = require('./source-map/source-map-consumer').SourceMapConsumer;
+exports.SourceNode = require('./source-map/source-node').SourceNode;
diff --git a/tools/node_modules/source-map/lib/source-map/array-set.js b/tools/node_modules/source-map/lib/source-map/array-set.js
new file mode 100644
index 00000000..f138ae7c
--- /dev/null
+++ b/tools/node_modules/source-map/lib/source-map/array-set.js
@@ -0,0 +1,96 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+    var define = require('amdefine')(module);
+}
+define(function (require, exports, module) {
+
+  var util = require('./util');
+
+  /**
+   * A data structure which is a combination of an array and a set. Adding a new
+   * member is O(1), testing for membership is O(1), and finding the index of an
+   * element is O(1). Removing elements from the set is not supported. Only
+   * strings are supported for membership.
+   */
+  function ArraySet() {
+    this._array = [];
+    this._set = {};
+  }
+
+  /**
+   * Static method for creating ArraySet instances from an existing array.
+   */
+  ArraySet.fromArray = function ArraySet_fromArray(aArray) {
+    var set = new ArraySet();
+    for (var i = 0, len = aArray.length; i < len; i++) {
+      set.add(aArray[i]);
+    }
+    return set;
+  };
+
+  /**
+   * Add the given string to this set.
+   *
+   * @param String aStr
+   */
+  ArraySet.prototype.add = function ArraySet_add(aStr) {
+    if (this.has(aStr)) {
+      // Already a member; nothing to do.
+      return;
+    }
+    var idx = this._array.length;
+    this._array.push(aStr);
+    this._set[util.toSetString(aStr)] = idx;
+  };
+
+  /**
+   * Is the given string a member of this set?
+   *
+   * @param String aStr
+   */
+  ArraySet.prototype.has = function ArraySet_has(aStr) {
+    return Object.prototype.hasOwnProperty.call(this._set,
+                                                util.toSetString(aStr));
+  };
+
+  /**
+   * What is the index of the given string in the array?
+   *
+   * @param String aStr
+   */
+  ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) {
+    if (this.has(aStr)) {
+      return this._set[util.toSetString(aStr)];
+    }
+    throw new Error('"' + aStr + '" is not in the set.');
+  };
+
+  /**
+   * What is the element at the given index?
+   *
+   * @param Number aIdx
+   */
+  ArraySet.prototype.at = function ArraySet_at(aIdx) {
+    if (aIdx >= 0 && aIdx < this._array.length) {
+      return this._array[aIdx];
+    }
+    throw new Error('No element indexed by ' + aIdx);
+  };
+
+  /**
+   * Returns the array representation of this set (which has the proper indices
+   * indicated by indexOf). Note that this is a copy of the internal array used
+   * for storing the members so that no one can mess with internal state.
+   */
+  ArraySet.prototype.toArray = function ArraySet_toArray() {
+    return this._array.slice();
+  };
+
+  exports.ArraySet = ArraySet;
+
+});
diff --git a/tools/node_modules/source-map/lib/source-map/base64-vlq.js b/tools/node_modules/source-map/lib/source-map/base64-vlq.js
new file mode 100644
index 00000000..a9dd758e
--- /dev/null
+++ b/tools/node_modules/source-map/lib/source-map/base64-vlq.js
@@ -0,0 +1,144 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ *
+ * Based on the Base 64 VLQ implementation in Closure Compiler:
+ * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java
+ *
+ * Copyright 2011 The Closure Compiler Authors. All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above
+ *    copyright notice, this list of conditions and the following
+ *    disclaimer in the documentation and/or other materials provided
+ *    with the distribution.
+ *  * Neither the name of Google Inc. nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+if (typeof define !== 'function') {
+    var define = require('amdefine')(module);
+}
+define(function (require, exports, module) {
+
+  var base64 = require('./base64');
+
+  // A single base 64 digit can contain 6 bits of data. For the base 64 variable
+  // length quantities we use in the source map spec, the first bit is the sign,
+  // the next four bits are the actual value, and the 6th bit is the
+  // continuation bit. The continuation bit tells us whether there are more
+  // digits in this value following this digit.
+  //
+  //   Continuation
+  //   |    Sign
+  //   |    |
+  //   V    V
+  //   101011
+
+  var VLQ_BASE_SHIFT = 5;
+
+  // binary: 100000
+  var VLQ_BASE = 1 << VLQ_BASE_SHIFT;
+
+  // binary: 011111
+  var VLQ_BASE_MASK = VLQ_BASE - 1;
+
+  // binary: 100000
+  var VLQ_CONTINUATION_BIT = VLQ_BASE;
+
+  /**
+   * Converts from a two-complement value to a value where the sign bit is
+   * is placed in the least significant bit.  For example, as decimals:
+   *   1 becomes 2 (10 binary), -1 becomes 3 (11 binary)
+   *   2 becomes 4 (100 binary), -2 becomes 5 (101 binary)
+   */
+  function toVLQSigned(aValue) {
+    return aValue < 0
+      ? ((-aValue) << 1) + 1
+      : (aValue << 1) + 0;
+  }
+
+  /**
+   * Converts to a two-complement value from a value where the sign bit is
+   * is placed in the least significant bit.  For example, as decimals:
+   *   2 (10 binary) becomes 1, 3 (11 binary) becomes -1
+   *   4 (100 binary) becomes 2, 5 (101 binary) becomes -2
+   */
+  function fromVLQSigned(aValue) {
+    var isNegative = (aValue & 1) === 1;
+    var shifted = aValue >> 1;
+    return isNegative
+      ? -shifted
+      : shifted;
+  }
+
+  /**
+   * Returns the base 64 VLQ encoded value.
+   */
+  exports.encode = function base64VLQ_encode(aValue) {
+    var encoded = "";
+    var digit;
+
+    var vlq = toVLQSigned(aValue);
+
+    do {
+      digit = vlq & VLQ_BASE_MASK;
+      vlq >>>= VLQ_BASE_SHIFT;
+      if (vlq > 0) {
+        // There are still more digits in this value, so we must make sure the
+        // continuation bit is marked.
+        digit |= VLQ_CONTINUATION_BIT;
+      }
+      encoded += base64.encode(digit);
+    } while (vlq > 0);
+
+    return encoded;
+  };
+
+  /**
+   * Decodes the next base 64 VLQ value from the given string and returns the
+   * value and the rest of the string.
+   */
+  exports.decode = function base64VLQ_decode(aStr) {
+    var i = 0;
+    var strLen = aStr.length;
+    var result = 0;
+    var shift = 0;
+    var continuation, digit;
+
+    do {
+      if (i >= strLen) {
+        throw new Error("Expected more digits in base 64 VLQ value.");
+      }
+      digit = base64.decode(aStr.charAt(i++));
+      continuation = !!(digit & VLQ_CONTINUATION_BIT);
+      digit &= VLQ_BASE_MASK;
+      result = result + (digit << shift);
+      shift += VLQ_BASE_SHIFT;
+    } while (continuation);
+
+    return {
+      value: fromVLQSigned(result),
+      rest: aStr.slice(i)
+    };
+  };
+
+});
diff --git a/tools/node_modules/source-map/lib/source-map/base64.js b/tools/node_modules/source-map/lib/source-map/base64.js
new file mode 100644
index 00000000..397a754b
--- /dev/null
+++ b/tools/node_modules/source-map/lib/source-map/base64.js
@@ -0,0 +1,42 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+    var define = require('amdefine')(module);
+}
+define(function (require, exports, module) {
+
+  var charToIntMap = {};
+  var intToCharMap = {};
+
+  'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
+    .split('')
+    .forEach(function (ch, index) {
+      charToIntMap[ch] = index;
+      intToCharMap[index] = ch;
+    });
+
+  /**
+   * Encode an integer in the range of 0 to 63 to a single base 64 digit.
+   */
+  exports.encode = function base64_encode(aNumber) {
+    if (aNumber in intToCharMap) {
+      return intToCharMap[aNumber];
+    }
+    throw new TypeError("Must be between 0 and 63: " + aNumber);
+  };
+
+  /**
+   * Decode a single base 64 digit to an integer.
+   */
+  exports.decode = function base64_decode(aChar) {
+    if (aChar in charToIntMap) {
+      return charToIntMap[aChar];
+    }
+    throw new TypeError("Not a valid base 64 digit: " + aChar);
+  };
+
+});
diff --git a/tools/node_modules/source-map/lib/source-map/binary-search.js b/tools/node_modules/source-map/lib/source-map/binary-search.js
new file mode 100644
index 00000000..c6cb517c
--- /dev/null
+++ b/tools/node_modules/source-map/lib/source-map/binary-search.js
@@ -0,0 +1,81 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+    var define = require('amdefine')(module);
+}
+define(function (require, exports, module) {
+
+  /**
+   * Recursive implementation of binary search.
+   *
+   * @param aLow Indices here and lower do not contain the needle.
+   * @param aHigh Indices here and higher do not contain the needle.
+   * @param aNeedle The element being searched for.
+   * @param aHaystack The non-empty array being searched.
+   * @param aCompare Function which takes two elements and returns -1, 0, or 1.
+   */
+  function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare) {
+    // This function terminates when one of the following is true:
+    //
+    //   1. We find the exact element we are looking for.
+    //
+    //   2. We did not find the exact element, but we can return the next
+    //      closest element that is less than that element.
+    //
+    //   3. We did not find the exact element, and there is no next-closest
+    //      element which is less than the one we are searching for, so we
+    //      return null.
+    var mid = Math.floor((aHigh - aLow) / 2) + aLow;
+    var cmp = aCompare(aNeedle, aHaystack[mid]);
+    if (cmp === 0) {
+      // Found the element we are looking for.
+      return aHaystack[mid];
+    }
+    else if (cmp > 0) {
+      // aHaystack[mid] is greater than our needle.
+      if (aHigh - mid > 1) {
+        // The element is in the upper half.
+        return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare);
+      }
+      // We did not find an exact match, return the next closest one
+      // (termination case 2).
+      return aHaystack[mid];
+    }
+    else {
+      // aHaystack[mid] is less than our needle.
+      if (mid - aLow > 1) {
+        // The element is in the lower half.
+        return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare);
+      }
+      // The exact needle element was not found in this haystack. Determine if
+      // we are in termination case (2) or (3) and return the appropriate thing.
+      return aLow < 0
+        ? null
+        : aHaystack[aLow];
+    }
+  }
+
+  /**
+   * This is an implementation of binary search which will always try and return
+   * the next lowest value checked if there is no exact hit. This is because
+   * mappings between original and generated line/col pairs are single points,
+   * and there is an implicit region between each of them, so a miss just means
+   * that you aren't on the very start of a region.
+   *
+   * @param aNeedle The element you are looking for.
+   * @param aHaystack The array that is being searched.
+   * @param aCompare A function which takes the needle and an element in the
+   *     array and returns -1, 0, or 1 depending on whether the needle is less
+   *     than, equal to, or greater than the element, respectively.
+   */
+  exports.search = function search(aNeedle, aHaystack, aCompare) {
+    return aHaystack.length > 0
+      ? recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack, aCompare)
+      : null;
+  };
+
+});
diff --git a/tools/node_modules/source-map/lib/source-map/source-map-consumer.js b/tools/node_modules/source-map/lib/source-map/source-map-consumer.js
new file mode 100644
index 00000000..9da6f1c6
--- /dev/null
+++ b/tools/node_modules/source-map/lib/source-map/source-map-consumer.js
@@ -0,0 +1,426 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+    var define = require('amdefine')(module);
+}
+define(function (require, exports, module) {
+
+  var util = require('./util');
+  var binarySearch = require('./binary-search');
+  var ArraySet = require('./array-set').ArraySet;
+  var base64VLQ = require('./base64-vlq');
+
+  /**
+   * A SourceMapConsumer instance represents a parsed source map which we can
+   * query for information about the original file positions by giving it a file
+   * position in the generated source.
+   *
+   * The only parameter is the raw source map (either as a JSON string, or
+   * already parsed to an object). According to the spec, source maps have the
+   * following attributes:
+   *
+   *   - version: Which version of the source map spec this map is following.
+   *   - sources: An array of URLs to the original source files.
+   *   - names: An array of identifiers which can be referrenced by individual mappings.
+   *   - sourceRoot: Optional. The URL root from which all sources are relative.
+   *   - sourcesContent: Optional. An array of contents of the original source files.
+   *   - mappings: A string of base64 VLQs which contain the actual mappings.
+   *   - file: The generated file this source map is associated with.
+   *
+   * Here is an example source map, taken from the source map spec[0]:
+   *
+   *     {
+   *       version : 3,
+   *       file: "out.js",
+   *       sourceRoot : "",
+   *       sources: ["foo.js", "bar.js"],
+   *       names: ["src", "maps", "are", "fun"],
+   *       mappings: "AA,AB;;ABCDE;"
+   *     }
+   *
+   * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1#
+   */
+  function SourceMapConsumer(aSourceMap) {
+    var sourceMap = aSourceMap;
+    if (typeof aSourceMap === 'string') {
+      sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, ''));
+    }
+
+    var version = util.getArg(sourceMap, 'version');
+    var sources = util.getArg(sourceMap, 'sources');
+    var names = util.getArg(sourceMap, 'names');
+    var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null);
+    var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null);
+    var mappings = util.getArg(sourceMap, 'mappings');
+    var file = util.getArg(sourceMap, 'file');
+
+    if (version !== this._version) {
+      throw new Error('Unsupported version: ' + version);
+    }
+
+    this._names = ArraySet.fromArray(names);
+    this._sources = ArraySet.fromArray(sources);
+    this.sourceRoot = sourceRoot;
+    this.sourcesContent = sourcesContent;
+    this.file = file;
+
+    // `this._generatedMappings` and `this._originalMappings` hold the parsed
+    // mapping coordinates from the source map's "mappings" attribute. Each
+    // object in the array is of the form
+    //
+    //     {
+    //       generatedLine: The line number in the generated code,
+    //       generatedColumn: The column number in the generated code,
+    //       source: The path to the original source file that generated this
+    //               chunk of code,
+    //       originalLine: The line number in the original source that
+    //                     corresponds to this chunk of generated code,
+    //       originalColumn: The column number in the original source that
+    //                       corresponds to this chunk of generated code,
+    //       name: The name of the original symbol which generated this chunk of
+    //             code.
+    //     }
+    //
+    // All properties except for `generatedLine` and `generatedColumn` can be
+    // `null`.
+    //
+    // `this._generatedMappings` is ordered by the generated positions.
+    //
+    // `this._originalMappings` is ordered by the original positions.
+    this._generatedMappings = [];
+    this._originalMappings = [];
+    this._parseMappings(mappings, sourceRoot);
+  }
+
+  /**
+   * The version of the source mapping spec that we are consuming.
+   */
+  SourceMapConsumer.prototype._version = 3;
+
+  /**
+   * The list of original sources.
+   */
+  Object.defineProperty(SourceMapConsumer.prototype, 'sources', {
+    get: function () {
+      return this._sources.toArray().map(function (s) {
+        return this.sourceRoot ? util.join(this.sourceRoot, s) : s;
+      }, this);
+    }
+  });
+
+  /**
+   * Parse the mappings in a string in to a data structure which we can easily
+   * query (an ordered list in this._generatedMappings).
+   */
+  SourceMapConsumer.prototype._parseMappings =
+    function SourceMapConsumer_parseMappings(aStr, aSourceRoot) {
+      var generatedLine = 1;
+      var previousGeneratedColumn = 0;
+      var previousOriginalLine = 0;
+      var previousOriginalColumn = 0;
+      var previousSource = 0;
+      var previousName = 0;
+      var mappingSeparator = /^[,;]/;
+      var str = aStr;
+      var mapping;
+      var temp;
+
+      while (str.length > 0) {
+        if (str.charAt(0) === ';') {
+          generatedLine++;
+          str = str.slice(1);
+          previousGeneratedColumn = 0;
+        }
+        else if (str.charAt(0) === ',') {
+          str = str.slice(1);
+        }
+        else {
+          mapping = {};
+          mapping.generatedLine = generatedLine;
+
+          // Generated column.
+          temp = base64VLQ.decode(str);
+          mapping.generatedColumn = previousGeneratedColumn + temp.value;
+          previousGeneratedColumn = mapping.generatedColumn;
+          str = temp.rest;
+
+          if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) {
+            // Original source.
+            temp = base64VLQ.decode(str);
+            mapping.source = this._sources.at(previousSource + temp.value);
+            previousSource += temp.value;
+            str = temp.rest;
+            if (str.length === 0 || mappingSeparator.test(str.charAt(0))) {
+              throw new Error('Found a source, but no line and column');
+            }
+
+            // Original line.
+            temp = base64VLQ.decode(str);
+            mapping.originalLine = previousOriginalLine + temp.value;
+            previousOriginalLine = mapping.originalLine;
+            // Lines are stored 0-based
+            mapping.originalLine += 1;
+            str = temp.rest;
+            if (str.length === 0 || mappingSeparator.test(str.charAt(0))) {
+              throw new Error('Found a source and line, but no column');
+            }
+
+            // Original column.
+            temp = base64VLQ.decode(str);
+            mapping.originalColumn = previousOriginalColumn + temp.value;
+            previousOriginalColumn = mapping.originalColumn;
+            str = temp.rest;
+
+            if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) {
+              // Original name.
+              temp = base64VLQ.decode(str);
+              mapping.name = this._names.at(previousName + temp.value);
+              previousName += temp.value;
+              str = temp.rest;
+            }
+          }
+
+          this._generatedMappings.push(mapping);
+          if (typeof mapping.originalLine === 'number') {
+            this._originalMappings.push(mapping);
+          }
+        }
+      }
+
+      this._originalMappings.sort(this._compareOriginalPositions);
+    };
+
+  /**
+   * Comparator between two mappings where the original positions are compared.
+   */
+  SourceMapConsumer.prototype._compareOriginalPositions =
+    function SourceMapConsumer_compareOriginalPositions(mappingA, mappingB) {
+      if (mappingA.source > mappingB.source) {
+        return 1;
+      }
+      else if (mappingA.source < mappingB.source) {
+        return -1;
+      }
+      else {
+        var cmp = mappingA.originalLine - mappingB.originalLine;
+        return cmp === 0
+          ? mappingA.originalColumn - mappingB.originalColumn
+          : cmp;
+      }
+    };
+
+  /**
+   * Comparator between two mappings where the generated positions are compared.
+   */
+  SourceMapConsumer.prototype._compareGeneratedPositions =
+    function SourceMapConsumer_compareGeneratedPositions(mappingA, mappingB) {
+      var cmp = mappingA.generatedLine - mappingB.generatedLine;
+      return cmp === 0
+        ? mappingA.generatedColumn - mappingB.generatedColumn
+        : cmp;
+    };
+
+  /**
+   * Find the mapping that best matches the hypothetical "needle" mapping that
+   * we are searching for in the given "haystack" of mappings.
+   */
+  SourceMapConsumer.prototype._findMapping =
+    function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName,
+                                           aColumnName, aComparator) {
+      // To return the position we are searching for, we must first find the
+      // mapping for the given position and then return the opposite position it
+      // points to. Because the mappings are sorted, we can use binary search to
+      // find the best mapping.
+
+      if (aNeedle[aLineName] <= 0) {
+        throw new TypeError('Line must be greater than or equal to 1, got '
+                            + aNeedle[aLineName]);
+      }
+      if (aNeedle[aColumnName] < 0) {
+        throw new TypeError('Column must be greater than or equal to 0, got '
+                            + aNeedle[aColumnName]);
+      }
+
+      return binarySearch.search(aNeedle, aMappings, aComparator);
+    };
+
+  /**
+   * Returns the original source, line, and column information for the generated
+   * source's line and column positions provided. The only argument is an object
+   * with the following properties:
+   *
+   *   - line: The line number in the generated source.
+   *   - column: The column number in the generated source.
+   *
+   * and an object is returned with the following properties:
+   *
+   *   - source: The original source file, or null.
+   *   - line: The line number in the original source, or null.
+   *   - column: The column number in the original source, or null.
+   *   - name: The original identifier, or null.
+   */
+  SourceMapConsumer.prototype.originalPositionFor =
+    function SourceMapConsumer_originalPositionFor(aArgs) {
+      var needle = {
+        generatedLine: util.getArg(aArgs, 'line'),
+        generatedColumn: util.getArg(aArgs, 'column')
+      };
+
+      var mapping = this._findMapping(needle,
+                                      this._generatedMappings,
+                                      "generatedLine",
+                                      "generatedColumn",
+                                      this._compareGeneratedPositions);
+
+      if (mapping) {
+        var source = util.getArg(mapping, 'source', null);
+        if (source && this.sourceRoot) {
+          source = util.join(this.sourceRoot, source);
+        }
+        return {
+          source: source,
+          line: util.getArg(mapping, 'originalLine', null),
+          column: util.getArg(mapping, 'originalColumn', null),
+          name: util.getArg(mapping, 'name', null)
+        };
+      }
+
+      return {
+        source: null,
+        line: null,
+        column: null,
+        name: null
+      };
+    };
+
+  /**
+   * Returns the original source content. The only argument is
+   * the url of the original source file. Returns null if no
+   * original source content is availible.
+   */
+  SourceMapConsumer.prototype.sourceContentFor =
+    function SourceMapConsumer_sourceContentFor(aSource) {
+      if (!this.sourcesContent) {
+        return null;
+      }
+
+      if (this.sourceRoot) {
+        // Try to remove the sourceRoot
+        var relativeUrl = util.relative(this.sourceRoot, aSource);
+        if (this._sources.has(relativeUrl)) {
+          return this.sourcesContent[this._sources.indexOf(relativeUrl)];
+        }
+      }
+
+      if (this._sources.has(aSource)) {
+        return this.sourcesContent[this._sources.indexOf(aSource)];
+      }
+
+      throw new Error('"' + aSource + '" is not in the SourceMap.');
+    };
+
+  /**
+   * Returns the generated line and column information for the original source,
+   * line, and column positions provided. The only argument is an object with
+   * the following properties:
+   *
+   *   - source: The filename of the original source.
+   *   - line: The line number in the original source.
+   *   - column: The column number in the original source.
+   *
+   * and an object is returned with the following properties:
+   *
+   *   - line: The line number in the generated source, or null.
+   *   - column: The column number in the generated source, or null.
+   */
+  SourceMapConsumer.prototype.generatedPositionFor =
+    function SourceMapConsumer_generatedPositionFor(aArgs) {
+      var needle = {
+        source: util.getArg(aArgs, 'source'),
+        originalLine: util.getArg(aArgs, 'line'),
+        originalColumn: util.getArg(aArgs, 'column')
+      };
+
+      if (this.sourceRoot) {
+        needle.source = util.relative(this.sourceRoot, needle.source);
+      }
+
+      var mapping = this._findMapping(needle,
+                                      this._originalMappings,
+                                      "originalLine",
+                                      "originalColumn",
+                                      this._compareOriginalPositions);
+
+      if (mapping) {
+        return {
+          line: util.getArg(mapping, 'generatedLine', null),
+          column: util.getArg(mapping, 'generatedColumn', null)
+        };
+      }
+
+      return {
+        line: null,
+        column: null
+      };
+    };
+
+  SourceMapConsumer.GENERATED_ORDER = 1;
+  SourceMapConsumer.ORIGINAL_ORDER = 2;
+
+  /**
+   * Iterate over each mapping between an original source/line/column and a
+   * generated line/column in this source map.
+   *
+   * @param Function aCallback
+   *        The function that is called with each mapping.
+   * @param Object aContext
+   *        Optional. If specified, this object will be the value of `this` every
+   *        time that `aCallback` is called.
+   * @param aOrder
+   *        Either `SourceMapConsumer.GENERATED_ORDER` or
+   *        `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to
+   *        iterate over the mappings sorted by the generated file's line/column
+   *        order or the original's source/line/column order, respectively. Defaults to
+   *        `SourceMapConsumer.GENERATED_ORDER`.
+   */
+  SourceMapConsumer.prototype.eachMapping =
+    function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) {
+      var context = aContext || null;
+      var order = aOrder || SourceMapConsumer.GENERATED_ORDER;
+
+      var mappings;
+      switch (order) {
+      case SourceMapConsumer.GENERATED_ORDER:
+        mappings = this._generatedMappings;
+        break;
+      case SourceMapConsumer.ORIGINAL_ORDER:
+        mappings = this._originalMappings;
+        break;
+      default:
+        throw new Error("Unknown order of iteration.");
+      }
+
+      var sourceRoot = this.sourceRoot;
+      mappings.map(function (mapping) {
+        var source = mapping.source;
+        if (source && sourceRoot) {
+          source = util.join(sourceRoot, source);
+        }
+        return {
+          source: source,
+          generatedLine: mapping.generatedLine,
+          generatedColumn: mapping.generatedColumn,
+          originalLine: mapping.originalLine,
+          originalColumn: mapping.originalColumn,
+          name: mapping.name
+        };
+      }).forEach(aCallback, context);
+    };
+
+  exports.SourceMapConsumer = SourceMapConsumer;
+
+});
diff --git a/tools/node_modules/source-map/lib/source-map/source-map-generator.js b/tools/node_modules/source-map/lib/source-map/source-map-generator.js
new file mode 100644
index 00000000..b3f62f51
--- /dev/null
+++ b/tools/node_modules/source-map/lib/source-map/source-map-generator.js
@@ -0,0 +1,381 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+    var define = require('amdefine')(module);
+}
+define(function (require, exports, module) {
+
+  var base64VLQ = require('./base64-vlq');
+  var util = require('./util');
+  var ArraySet = require('./array-set').ArraySet;
+
+  /**
+   * An instance of the SourceMapGenerator represents a source map which is
+   * being built incrementally. To create a new one, you must pass an object
+   * with the following properties:
+   *
+   *   - file: The filename of the generated source.
+   *   - sourceRoot: An optional root for all URLs in this source map.
+   */
+  function SourceMapGenerator(aArgs) {
+    this._file = util.getArg(aArgs, 'file');
+    this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null);
+    this._sources = new ArraySet();
+    this._names = new ArraySet();
+    this._mappings = [];
+    this._sourcesContents = null;
+  }
+
+  SourceMapGenerator.prototype._version = 3;
+
+  /**
+   * Creates a new SourceMapGenerator based on a SourceMapConsumer
+   *
+   * @param aSourceMapConsumer The SourceMap.
+   */
+  SourceMapGenerator.fromSourceMap =
+    function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) {
+      var sourceRoot = aSourceMapConsumer.sourceRoot;
+      var generator = new SourceMapGenerator({
+        file: aSourceMapConsumer.file,
+        sourceRoot: sourceRoot
+      });
+      aSourceMapConsumer.eachMapping(function (mapping) {
+        var newMapping = {
+          generated: {
+            line: mapping.generatedLine,
+            column: mapping.generatedColumn
+          }
+        };
+
+        if (mapping.source) {
+          newMapping.source = mapping.source;
+          if (sourceRoot) {
+            newMapping.source = util.relative(sourceRoot, newMapping.source);
+          }
+
+          newMapping.original = {
+            line: mapping.originalLine,
+            column: mapping.originalColumn
+          };
+
+          if (mapping.name) {
+            newMapping.name = mapping.name;
+          }
+        }
+
+        generator.addMapping(newMapping);
+      });
+      aSourceMapConsumer.sources.forEach(function (sourceFile) {
+        var content = aSourceMapConsumer.sourceContentFor(sourceFile);
+        if (content) {
+          generator.setSourceContent(sourceFile, content);
+        }
+      });
+      return generator;
+    };
+
+  /**
+   * Add a single mapping from original source line and column to the generated
+   * source's line and column for this source map being created. The mapping
+   * object should have the following properties:
+   *
+   *   - generated: An object with the generated line and column positions.
+   *   - original: An object with the original line and column positions.
+   *   - source: The original source file (relative to the sourceRoot).
+   *   - name: An optional original token name for this mapping.
+   */
+  SourceMapGenerator.prototype.addMapping =
+    function SourceMapGenerator_addMapping(aArgs) {
+      var generated = util.getArg(aArgs, 'generated');
+      var original = util.getArg(aArgs, 'original', null);
+      var source = util.getArg(aArgs, 'source', null);
+      var name = util.getArg(aArgs, 'name', null);
+
+      this._validateMapping(generated, original, source, name);
+
+      if (source && !this._sources.has(source)) {
+        this._sources.add(source);
+      }
+
+      if (name && !this._names.has(name)) {
+        this._names.add(name);
+      }
+
+      this._mappings.push({
+        generated: generated,
+        original: original,
+        source: source,
+        name: name
+      });
+    };
+
+  /**
+   * Set the source content for a source file.
+   */
+  SourceMapGenerator.prototype.setSourceContent =
+    function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) {
+      var source = aSourceFile;
+      if (this._sourceRoot) {
+        source = util.relative(this._sourceRoot, source);
+      }
+
+      if (aSourceContent !== null) {
+        // Add the source content to the _sourcesContents map.
+        // Create a new _sourcesContents map if the property is null.
+        if (!this._sourcesContents) {
+          this._sourcesContents = {};
+        }
+        this._sourcesContents[util.toSetString(source)] = aSourceContent;
+      } else {
+        // Remove the source file from the _sourcesContents map.
+        // If the _sourcesContents map is empty, set the property to null.
+        delete this._sourcesContents[util.toSetString(source)];
+        if (Object.keys(this._sourcesContents).length === 0) {
+          this._sourcesContents = null;
+        }
+      }
+    };
+
+  /**
+   * Applies the mappings of a sub-source-map for a specific source file to the
+   * source map being generated. Each mapping to the supplied source file is
+   * rewritten using the supplied source map. Note: The resolution for the
+   * resulting mappings is the minimium of this map and the supplied map.
+   *
+   * @param aSourceMapConsumer The source map to be applied.
+   * @param aSourceFile Optional. The filename of the source file.
+   *        If omitted, SourceMapConsumer's file property will be used.
+   */
+  SourceMapGenerator.prototype.applySourceMap =
+    function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile) {
+      // If aSourceFile is omitted, we will use the file property of the SourceMap
+      if (!aSourceFile) {
+        aSourceFile = aSourceMapConsumer.file;
+      }
+      var sourceRoot = this._sourceRoot;
+      // Make "aSourceFile" relative if an absolute Url is passed.
+      if (sourceRoot) {
+        aSourceFile = util.relative(sourceRoot, aSourceFile);
+      }
+      // Applying the SourceMap can add and remove items from the sources and
+      // the names array.
+      var newSources = new ArraySet();
+      var newNames = new ArraySet();
+
+      // Find mappings for the "aSourceFile"
+      this._mappings.forEach(function (mapping) {
+        if (mapping.source === aSourceFile && mapping.original) {
+          // Check if it can be mapped by the source map, then update the mapping.
+          var original = aSourceMapConsumer.originalPositionFor({
+            line: mapping.original.line,
+            column: mapping.original.column
+          });
+          if (original.source !== null) {
+            // Copy mapping
+            if (sourceRoot) {
+              mapping.source = util.relative(sourceRoot, original.source);
+            } else {
+              mapping.source = original.source;
+            }
+            mapping.original.line = original.line;
+            mapping.original.column = original.column;
+            if (original.name !== null && mapping.name !== null) {
+              // Only use the identifier name if it's an identifier
+              // in both SourceMaps
+              mapping.name = original.name;
+            }
+          }
+        }
+
+        var source = mapping.source;
+        if (source && !newSources.has(source)) {
+          newSources.add(source);
+        }
+
+        var name = mapping.name;
+        if (name && !newNames.has(name)) {
+          newNames.add(name);
+        }
+
+      }, this);
+      this._sources = newSources;
+      this._names = newNames;
+
+      // Copy sourcesContents of applied map.
+      aSourceMapConsumer.sources.forEach(function (sourceFile) {
+        var content = aSourceMapConsumer.sourceContentFor(sourceFile);
+        if (content) {
+          if (sourceRoot) {
+            sourceFile = util.relative(sourceRoot, sourceFile);
+          }
+          this.setSourceContent(sourceFile, content);
+        }
+      }, this);
+    };
+
+  /**
+   * A mapping can have one of the three levels of data:
+   *
+   *   1. Just the generated position.
+   *   2. The Generated position, original position, and original source.
+   *   3. Generated and original position, original source, as well as a name
+   *      token.
+   *
+   * To maintain consistency, we validate that any new mapping being added falls
+   * in to one of these categories.
+   */
+  SourceMapGenerator.prototype._validateMapping =
+    function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource,
+                                                aName) {
+      if (aGenerated && 'line' in aGenerated && 'column' in aGenerated
+          && aGenerated.line > 0 && aGenerated.column >= 0
+          && !aOriginal && !aSource && !aName) {
+        // Case 1.
+        return;
+      }
+      else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated
+               && aOriginal && 'line' in aOriginal && 'column' in aOriginal
+               && aGenerated.line > 0 && aGenerated.column >= 0
+               && aOriginal.line > 0 && aOriginal.column >= 0
+               && aSource) {
+        // Cases 2 and 3.
+        return;
+      }
+      else {
+        throw new Error('Invalid mapping.');
+      }
+    };
+
+  function cmpLocation(loc1, loc2) {
+    var cmp = (loc1 && loc1.line) - (loc2 && loc2.line);
+    return cmp ? cmp : (loc1 && loc1.column) - (loc2 && loc2.column);
+  }
+
+  function strcmp(str1, str2) {
+    str1 = str1 || '';
+    str2 = str2 || '';
+    return (str1 > str2) - (str1 < str2);
+  }
+
+  function cmpMapping(mappingA, mappingB) {
+    return cmpLocation(mappingA.generated, mappingB.generated) ||
+      cmpLocation(mappingA.original, mappingB.original) ||
+      strcmp(mappingA.source, mappingB.source) ||
+      strcmp(mappingA.name, mappingB.name);
+  }
+
+  /**
+   * Serialize the accumulated mappings in to the stream of base 64 VLQs
+   * specified by the source map format.
+   */
+  SourceMapGenerator.prototype._serializeMappings =
+    function SourceMapGenerator_serializeMappings() {
+      var previousGeneratedColumn = 0;
+      var previousGeneratedLine = 1;
+      var previousOriginalColumn = 0;
+      var previousOriginalLine = 0;
+      var previousName = 0;
+      var previousSource = 0;
+      var result = '';
+      var mapping;
+
+      // The mappings must be guarenteed to be in sorted order before we start
+      // serializing them or else the generated line numbers (which are defined
+      // via the ';' separators) will be all messed up. Note: it might be more
+      // performant to maintain the sorting as we insert them, rather than as we
+      // serialize them, but the big O is the same either way.
+      this._mappings.sort(cmpMapping);
+
+      for (var i = 0, len = this._mappings.length; i < len; i++) {
+        mapping = this._mappings[i];
+
+        if (mapping.generated.line !== previousGeneratedLine) {
+          previousGeneratedColumn = 0;
+          while (mapping.generated.line !== previousGeneratedLine) {
+            result += ';';
+            previousGeneratedLine++;
+          }
+        }
+        else {
+          if (i > 0) {
+            if (!cmpMapping(mapping, this._mappings[i - 1])) {
+              continue;
+            }
+            result += ',';
+          }
+        }
+
+        result += base64VLQ.encode(mapping.generated.column
+                                   - previousGeneratedColumn);
+        previousGeneratedColumn = mapping.generated.column;
+
+        if (mapping.source && mapping.original) {
+          result += base64VLQ.encode(this._sources.indexOf(mapping.source)
+                                     - previousSource);
+          previousSource = this._sources.indexOf(mapping.source);
+
+          // lines are stored 0-based in SourceMap spec version 3
+          result += base64VLQ.encode(mapping.original.line - 1
+                                     - previousOriginalLine);
+          previousOriginalLine = mapping.original.line - 1;
+
+          result += base64VLQ.encode(mapping.original.column
+                                     - previousOriginalColumn);
+          previousOriginalColumn = mapping.original.column;
+
+          if (mapping.name) {
+            result += base64VLQ.encode(this._names.indexOf(mapping.name)
+                                       - previousName);
+            previousName = this._names.indexOf(mapping.name);
+          }
+        }
+      }
+
+      return result;
+    };
+
+  /**
+   * Externalize the source map.
+   */
+  SourceMapGenerator.prototype.toJSON =
+    function SourceMapGenerator_toJSON() {
+      var map = {
+        version: this._version,
+        file: this._file,
+        sources: this._sources.toArray(),
+        names: this._names.toArray(),
+        mappings: this._serializeMappings()
+      };
+      if (this._sourceRoot) {
+        map.sourceRoot = this._sourceRoot;
+      }
+      if (this._sourcesContents) {
+        map.sourcesContent = map.sources.map(function (source) {
+          if (map.sourceRoot) {
+            source = util.relative(map.sourceRoot, source);
+          }
+          return Object.prototype.hasOwnProperty.call(
+            this._sourcesContents, util.toSetString(source))
+            ? this._sourcesContents[util.toSetString(source)]
+            : null;
+        }, this);
+      }
+      return map;
+    };
+
+  /**
+   * Render the source map being generated to a string.
+   */
+  SourceMapGenerator.prototype.toString =
+    function SourceMapGenerator_toString() {
+      return JSON.stringify(this);
+    };
+
+  exports.SourceMapGenerator = SourceMapGenerator;
+
+});
diff --git a/tools/node_modules/source-map/lib/source-map/source-node.js b/tools/node_modules/source-map/lib/source-map/source-node.js
new file mode 100644
index 00000000..4c3314a8
--- /dev/null
+++ b/tools/node_modules/source-map/lib/source-map/source-node.js
@@ -0,0 +1,353 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+    var define = require('amdefine')(module);
+}
+define(function (require, exports, module) {
+
+  var SourceMapGenerator = require('./source-map-generator').SourceMapGenerator;
+  var util = require('./util');
+
+  /**
+   * SourceNodes provide a way to abstract over interpolating/concatenating
+   * snippets of generated JavaScript source code while maintaining the line and
+   * column information associated with the original source code.
+   *
+   * @param aLine The original line number.
+   * @param aColumn The original column number.
+   * @param aSource The original source's filename.
+   * @param aChunks Optional. An array of strings which are snippets of
+   *        generated JS, or other SourceNodes.
+   * @param aName The original identifier.
+   */
+  function SourceNode(aLine, aColumn, aSource, aChunks, aName) {
+    this.children = [];
+    this.sourceContents = {};
+    this.line = aLine === undefined ? null : aLine;
+    this.column = aColumn === undefined ? null : aColumn;
+    this.source = aSource === undefined ? null : aSource;
+    this.name = aName === undefined ? null : aName;
+    if (aChunks != null) this.add(aChunks);
+  }
+
+  /**
+   * Creates a SourceNode from generated code and a SourceMapConsumer.
+   *
+   * @param aGeneratedCode The generated code
+   * @param aSourceMapConsumer The SourceMap for the generated code
+   */
+  SourceNode.fromStringWithSourceMap =
+    function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer) {
+      // The SourceNode we want to fill with the generated code
+      // and the SourceMap
+      var node = new SourceNode();
+
+      // The generated code
+      // Processed fragments are removed from this array.
+      var remainingLines = aGeneratedCode.split('\n');
+
+      // We need to remember the position of "remainingLines"
+      var lastGeneratedLine = 1, lastGeneratedColumn = 0;
+
+      // The generate SourceNodes we need a code range.
+      // To extract it current and last mapping is used.
+      // Here we store the last mapping.
+      var lastMapping = null;
+
+      aSourceMapConsumer.eachMapping(function (mapping) {
+        if (lastMapping === null) {
+          // We add the generated code until the first mapping
+          // to the SourceNode without any mapping.
+          // Each line is added as separate string.
+          while (lastGeneratedLine < mapping.generatedLine) {
+            node.add(remainingLines.shift() + "\n");
+            lastGeneratedLine++;
+          }
+          if (lastGeneratedColumn < mapping.generatedColumn) {
+            var nextLine = remainingLines[0];
+            node.add(nextLine.substr(0, mapping.generatedColumn));
+            remainingLines[0] = nextLine.substr(mapping.generatedColumn);
+            lastGeneratedColumn = mapping.generatedColumn;
+          }
+        } else {
+          // We add the code from "lastMapping" to "mapping":
+          // First check if there is a new line in between.
+          if (lastGeneratedLine < mapping.generatedLine) {
+            var code = "";
+            // Associate full lines with "lastMapping"
+            do {
+              code += remainingLines.shift() + "\n";
+              lastGeneratedLine++;
+              lastGeneratedColumn = 0;
+            } while (lastGeneratedLine < mapping.generatedLine);
+            // When we reached the correct line, we add code until we
+            // reach the correct column too.
+            if (lastGeneratedColumn < mapping.generatedColumn) {
+              var nextLine = remainingLines[0];
+              code += nextLine.substr(0, mapping.generatedColumn);
+              remainingLines[0] = nextLine.substr(mapping.generatedColumn);
+              lastGeneratedColumn = mapping.generatedColumn;
+            }
+            // Create the SourceNode.
+            addMappingWithCode(lastMapping, code);
+          } else {
+            // There is no new line in between.
+            // Associate the code between "lastGeneratedColumn" and
+            // "mapping.generatedColumn" with "lastMapping"
+            var nextLine = remainingLines[0];
+            var code = nextLine.substr(0, mapping.generatedColumn -
+                                          lastGeneratedColumn);
+            remainingLines[0] = nextLine.substr(mapping.generatedColumn -
+                                                lastGeneratedColumn);
+            lastGeneratedColumn = mapping.generatedColumn;
+            addMappingWithCode(lastMapping, code);
+          }
+        }
+        lastMapping = mapping;
+      }, this);
+      // We have processed all mappings.
+      // Associate the remaining code in the current line with "lastMapping"
+      // and add the remaining lines without any mapping
+      addMappingWithCode(lastMapping, remainingLines.join("\n"));
+
+      // Copy sourcesContent into SourceNode
+      aSourceMapConsumer.sources.forEach(function (sourceFile) {
+        var content = aSourceMapConsumer.sourceContentFor(sourceFile);
+        if (content) {
+          node.setSourceContent(sourceFile, content);
+        }
+      });
+
+      return node;
+
+      function addMappingWithCode(mapping, code) {
+        if (mapping.source === undefined) {
+          node.add(code);
+        } else {
+          node.add(new SourceNode(mapping.originalLine,
+                                  mapping.originalColumn,
+                                  mapping.source,
+                                  code,
+                                  mapping.name));
+        }
+      }
+    };
+
+  /**
+   * Add a chunk of generated JS to this source node.
+   *
+   * @param aChunk A string snippet of generated JS code, another instance of
+   *        SourceNode, or an array where each member is one of those things.
+   */
+  SourceNode.prototype.add = function SourceNode_add(aChunk) {
+    if (Array.isArray(aChunk)) {
+      aChunk.forEach(function (chunk) {
+        this.add(chunk);
+      }, this);
+    }
+    else if (aChunk instanceof SourceNode || typeof aChunk === "string") {
+      if (aChunk) {
+        this.children.push(aChunk);
+      }
+    }
+    else {
+      throw new TypeError(
+        "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk
+      );
+    }
+    return this;
+  };
+
+  /**
+   * Add a chunk of generated JS to the beginning of this source node.
+   *
+   * @param aChunk A string snippet of generated JS code, another instance of
+   *        SourceNode, or an array where each member is one of those things.
+   */
+  SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) {
+    if (Array.isArray(aChunk)) {
+      for (var i = aChunk.length-1; i >= 0; i--) {
+        this.prepend(aChunk[i]);
+      }
+    }
+    else if (aChunk instanceof SourceNode || typeof aChunk === "string") {
+      this.children.unshift(aChunk);
+    }
+    else {
+      throw new TypeError(
+        "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk
+      );
+    }
+    return this;
+  };
+
+  /**
+   * Walk over the tree of JS snippets in this node and its children. The
+   * walking function is called once for each snippet of JS and is passed that
+   * snippet and the its original associated source's line/column location.
+   *
+   * @param aFn The traversal function.
+   */
+  SourceNode.prototype.walk = function SourceNode_walk(aFn) {
+    this.children.forEach(function (chunk) {
+      if (chunk instanceof SourceNode) {
+        chunk.walk(aFn);
+      }
+      else {
+        if (chunk !== '') {
+          aFn(chunk, { source: this.source,
+                       line: this.line,
+                       column: this.column,
+                       name: this.name });
+        }
+      }
+    }, this);
+  };
+
+  /**
+   * Like `String.prototype.join` except for SourceNodes. Inserts `aStr` between
+   * each of `this.children`.
+   *
+   * @param aSep The separator.
+   */
+  SourceNode.prototype.join = function SourceNode_join(aSep) {
+    var newChildren;
+    var i;
+    var len = this.children.length;
+    if (len > 0) {
+      newChildren = [];
+      for (i = 0; i < len-1; i++) {
+        newChildren.push(this.children[i]);
+        newChildren.push(aSep);
+      }
+      newChildren.push(this.children[i]);
+      this.children = newChildren;
+    }
+    return this;
+  };
+
+  /**
+   * Call String.prototype.replace on the very right-most source snippet. Useful
+   * for trimming whitespace from the end of a source node, etc.
+   *
+   * @param aPattern The pattern to replace.
+   * @param aReplacement The thing to replace the pattern with.
+   */
+  SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) {
+    var lastChild = this.children[this.children.length - 1];
+    if (lastChild instanceof SourceNode) {
+      lastChild.replaceRight(aPattern, aReplacement);
+    }
+    else if (typeof lastChild === 'string') {
+      this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement);
+    }
+    else {
+      this.children.push(''.replace(aPattern, aReplacement));
+    }
+    return this;
+  };
+
+  /**
+   * Set the source content for a source file. This will be added to the SourceMapGenerator
+   * in the sourcesContent field.
+   *
+   * @param aSourceFile The filename of the source file
+   * @param aSourceContent The content of the source file
+   */
+  SourceNode.prototype.setSourceContent =
+    function SourceNode_setSourceContent(aSourceFile, aSourceContent) {
+      this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent;
+    };
+
+  /**
+   * Walk over the tree of SourceNodes. The walking function is called for each
+   * source file content and is passed the filename and source content.
+   *
+   * @param aFn The traversal function.
+   */
+  SourceNode.prototype.walkSourceContents =
+    function SourceNode_walkSourceContents(aFn) {
+      this.children.forEach(function (chunk) {
+        if (chunk instanceof SourceNode) {
+          chunk.walkSourceContents(aFn);
+        }
+      }, this);
+      Object.keys(this.sourceContents).forEach(function (sourceFileKey) {
+        aFn(util.fromSetString(sourceFileKey), this.sourceContents[sourceFileKey]);
+      }, this);
+    };
+
+  /**
+   * Return the string representation of this source node. Walks over the tree
+   * and concatenates all the various snippets together to one string.
+   */
+  SourceNode.prototype.toString = function SourceNode_toString() {
+    var str = "";
+    this.walk(function (chunk) {
+      str += chunk;
+    });
+    return str;
+  };
+
+  /**
+   * Returns the string representation of this source node along with a source
+   * map.
+   */
+  SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) {
+    var generated = {
+      code: "",
+      line: 1,
+      column: 0
+    };
+    var map = new SourceMapGenerator(aArgs);
+    var sourceMappingActive = false;
+    this.walk(function (chunk, original) {
+      generated.code += chunk;
+      if (original.source !== null
+          && original.line !== null
+          && original.column !== null) {
+        map.addMapping({
+          source: original.source,
+          original: {
+            line: original.line,
+            column: original.column
+          },
+          generated: {
+            line: generated.line,
+            column: generated.column
+          },
+          name: original.name
+        });
+        sourceMappingActive = true;
+      } else if (sourceMappingActive) {
+        map.addMapping({
+          generated: {
+            line: generated.line,
+            column: generated.column
+          }
+        });
+        sourceMappingActive = false;
+      }
+      chunk.split('').forEach(function (ch) {
+        if (ch === '\n') {
+          generated.line++;
+          generated.column = 0;
+        } else {
+          generated.column++;
+        }
+      });
+    });
+    this.walkSourceContents(function (sourceFile, sourceContent) {
+      map.setSourceContent(sourceFile, sourceContent);
+    });
+
+    return { code: generated.code, map: map };
+  };
+
+  exports.SourceNode = SourceNode;
+
+});
diff --git a/tools/node_modules/source-map/lib/source-map/util.js b/tools/node_modules/source-map/lib/source-map/util.js
new file mode 100644
index 00000000..d59b2574
--- /dev/null
+++ b/tools/node_modules/source-map/lib/source-map/util.js
@@ -0,0 +1,91 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+    var define = require('amdefine')(module);
+}
+define(function (require, exports, module) {
+
+  /**
+   * This is a helper function for getting values from parameter/options
+   * objects.
+   *
+   * @param args The object we are extracting values from
+   * @param name The name of the property we are getting.
+   * @param defaultValue An optional value to return if the property is missing
+   * from the object. If this is not specified and the property is missing, an
+   * error will be thrown.
+   */
+  function getArg(aArgs, aName, aDefaultValue) {
+    if (aName in aArgs) {
+      return aArgs[aName];
+    } else if (arguments.length === 3) {
+      return aDefaultValue;
+    } else {
+      throw new Error('"' + aName + '" is a required argument.');
+    }
+  }
+  exports.getArg = getArg;
+
+  var urlRegexp = /([\w+\-.]+):\/\/((\w+:\w+)@)?([\w.]+)?(:(\d+))?(\S+)?/;
+
+  function urlParse(aUrl) {
+    var match = aUrl.match(urlRegexp);
+    if (!match) {
+      return null;
+    }
+    return {
+      scheme: match[1],
+      auth: match[3],
+      host: match[4],
+      port: match[6],
+      path: match[7]
+    };
+  }
+
+  function join(aRoot, aPath) {
+    var url;
+
+    if (aPath.match(urlRegexp)) {
+      return aPath;
+    }
+
+    if (aPath.charAt(0) === '/' && (url = urlParse(aRoot))) {
+      return aRoot.replace(url.path, '') + aPath;
+    }
+
+    return aRoot.replace(/\/$/, '') + '/' + aPath;
+  }
+  exports.join = join;
+
+  /**
+   * Because behavior goes wacky when you set `__proto__` on objects, we
+   * have to prefix all the strings in our set with an arbitrary character.
+   *
+   * See https://github.com/mozilla/source-map/pull/31 and
+   * https://github.com/mozilla/source-map/issues/30
+   *
+   * @param String aStr
+   */
+  function toSetString(aStr) {
+    return '$' + aStr;
+  }
+  exports.toSetString = toSetString;
+
+  function fromSetString(aStr) {
+    return aStr.substr(1);
+  }
+  exports.fromSetString = fromSetString;
+
+  function relative(aRoot, aPath) {
+    aRoot = aRoot.replace(/\/$/, '');
+    return aPath.indexOf(aRoot + '/') === 0
+      ? aPath.substr(aRoot.length + 1)
+      : aPath;
+  }
+  exports.relative = relative;
+
+});
diff --git a/tools/node_modules/source-map/node_modules/amdefine/LICENSE b/tools/node_modules/source-map/node_modules/amdefine/LICENSE
new file mode 100644
index 00000000..f33d665d
--- /dev/null
+++ b/tools/node_modules/source-map/node_modules/amdefine/LICENSE
@@ -0,0 +1,58 @@
+amdefine is released under two licenses: new BSD, and MIT. You may pick the
+license that best suits your development needs. The text of both licenses are
+provided below.
+
+
+The "New" BSD License:
+----------------------
+
+Copyright (c) 2011, The Dojo Foundation
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+  * Redistributions of source code must retain the above copyright notice, this
+    list of conditions and the following disclaimer.
+  * Redistributions in binary form must reproduce the above copyright notice,
+    this list of conditions and the following disclaimer in the documentation
+    and/or other materials provided with the distribution.
+  * Neither the name of the Dojo Foundation nor the names of its contributors
+    may be used to endorse or promote products derived from this software
+    without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+
+MIT License
+-----------
+
+Copyright (c) 2011, The Dojo Foundation
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/tools/node_modules/source-map/node_modules/amdefine/README.md b/tools/node_modules/source-map/node_modules/amdefine/README.md
new file mode 100644
index 00000000..8ebbc739
--- /dev/null
+++ b/tools/node_modules/source-map/node_modules/amdefine/README.md
@@ -0,0 +1,119 @@
+# amdefine
+
+A module that can be used to implement AMD's define() in Node. This allows you
+to code to the AMD API and have the module work in node programs without
+requiring those other programs to use AMD.
+
+## Usage
+
+**1)** Update your package.json to indicate amdefine as a dependency:
+
+```javascript
+    "dependencies": {
+        "amdefine": ">=0.0.5"
+    }
+```
+
+Then run `npm install` to get amdefine into your project.
+
+**2)** At the top of each module that uses define(), place this code:
+
+```javascript
+if (typeof define !== 'function') { var define = require('amdefine')(module) }
+```
+
+**Only use these snippets** when loading amdefine. If you preserve the basic structure,
+with the braces, it will be stripped out when using the [RequireJS optimizer](#optimizer).
+
+You can add spaces, line breaks and even require amdefine with a local path, but
+keep the rest of the structure to get the stripping behavior.
+
+As you may know, because `if` statements in JavaScript don't have their own scope, the var
+declaration in the above snippet is made whether the `if` expression is truthy or not. If
+RequireJS is loaded then the declaration is superfluous because `define` is already already
+declared in the same scope in RequireJS. Fortunately JavaScript handles multiple `var`
+declarations of the same variable in the same scope gracefully.
+
+If you want to deliver amdefine.js with your code rather than specifying it as a dependency
+with npm, then just download the latest release and refer to it using a relative path:
+
+[Latest Version](https://github.com/jrburke/amdefine/raw/latest/amdefine.js)
+
+## define() usage
+
+It is best if you use the anonymous forms of define() in your module:
+
+```javascript
+define(function (require) {
+    var dependency = require('dependency');
+});
+```
+
+or
+
+```javascript
+define(['dependency'], function (dependency) {
+
+});
+```
+
+## RequireJS optimizer integration. <a name="optimizer"></name>
+
+Version 1.0.3 of the [RequireJS optimizer](http://requirejs.org/docs/optimization.html)
+will have support for stripping the `if (typeof define !== 'function')` check
+mentioned above, so you can include this snippet for code that runs in the
+browser, but avoid taking the cost of the if() statement once the code is
+optimized for deployment.
+
+## Node 0.4 Support
+
+If you want to support Node 0.4, then add `require` as the second parameter to amdefine:
+
+```javascript
+//Only if you want Node 0.4. If using 0.5 or later, use the above snippet.
+if (typeof define !== 'function') { var define = require('amdefine')(module, require) }
+```
+
+## Limitations
+
+### Synchronous vs Asynchronous
+
+amdefine creates a define() function that is callable by your code. It will
+execute and trace dependencies and call the factory function *synchronously*,
+to keep the behavior in line with Node's synchronous dependency tracing.
+
+The exception: calling AMD's callback-style require() from inside a factory
+function. The require callback is called on process.nextTick():
+
+```javascript
+define(function (require) {
+    require(['a'], function(a) {
+        //'a' is loaded synchronously, but
+        //this callback is called on process.nextTick().
+    });
+});
+```
+
+### Loader Plugins
+
+Loader plugins are supported as long as they call their load() callbacks
+synchronously. So ones that do network requests will not work. However plugins
+like [text](http://requirejs.org/docs/api.html#text) can load text files locally.
+
+The plugin API's `load.fromText()` is **not supported** in amdefine, so this means
+transpiler plugins like the [CoffeeScript loader plugin](https://github.com/jrburke/require-cs)
+will not work. This may be fixable, but it is a bit complex, and I do not have
+enough node-fu to figure it out yet. See the source for amdefine.js if you want
+to get an idea of the issues involved.
+
+## Tests
+
+To run the tests, cd to **tests** and run:
+
+```
+node all.js
+```
+
+## License
+
+New BSD and MIT. Check the LICENSE file for all the details.
diff --git a/tools/node_modules/source-map/node_modules/amdefine/amdefine.js b/tools/node_modules/source-map/node_modules/amdefine/amdefine.js
new file mode 100644
index 00000000..d074c94c
--- /dev/null
+++ b/tools/node_modules/source-map/node_modules/amdefine/amdefine.js
@@ -0,0 +1,299 @@
+/** vim: et:ts=4:sw=4:sts=4
+ * @license amdefine 0.0.5 Copyright (c) 2011, The Dojo Foundation All Rights Reserved.
+ * Available via the MIT or new BSD license.
+ * see: http://github.com/jrburke/amdefine for details
+ */
+
+/*jslint node: true */
+/*global module, process */
+'use strict';
+
+var path = require('path');
+
+/**
+ * Creates a define for node.
+ * @param {Object} module the "module" object that is defined by Node for the
+ * current module.
+ * @param {Function} [require]. Node's require function for the current module.
+ * It only needs to be passed in Node versions before 0.5, when module.require
+ * did not exist.
+ * @returns {Function} a define function that is usable for the current node
+ * module.
+ */
+function amdefine(module, require) {
+    var defineCache = {},
+        loaderCache = {},
+        alreadyCalled = false,
+        makeRequire, stringRequire;
+
+    /**
+     * Trims the . and .. from an array of path segments.
+     * It will keep a leading path segment if a .. will become
+     * the first path segment, to help with module name lookups,
+     * which act like paths, but can be remapped. But the end result,
+     * all paths that use this function should look normalized.
+     * NOTE: this method MODIFIES the input array.
+     * @param {Array} ary the array of path segments.
+     */
+    function trimDots(ary) {
+        var i, part;
+        for (i = 0; ary[i]; i+= 1) {
+            part = ary[i];
+            if (part === '.') {
+                ary.splice(i, 1);
+                i -= 1;
+            } else if (part === '..') {
+                if (i === 1 && (ary[2] === '..' || ary[0] === '..')) {
+                    //End of the line. Keep at least one non-dot
+                    //path segment at the front so it can be mapped
+                    //correctly to disk. Otherwise, there is likely
+                    //no path mapping for a path starting with '..'.
+                    //This can still fail, but catches the most reasonable
+                    //uses of ..
+                    break;
+                } else if (i > 0) {
+                    ary.splice(i - 1, 2);
+                    i -= 2;
+                }
+            }
+        }
+    }
+
+    function normalize(name, baseName) {
+        var baseParts;
+
+        //Adjust any relative paths.
+        if (name && name.charAt(0) === '.') {
+            //If have a base name, try to normalize against it,
+            //otherwise, assume it is a top-level require that will
+            //be relative to baseUrl in the end.
+            if (baseName) {
+                baseParts = baseName.split('/');
+                baseParts = baseParts.slice(0, baseParts.length - 1);
+                baseParts = baseParts.concat(name.split('/'));
+                trimDots(baseParts);
+                name = baseParts.join('/');
+            }
+        }
+
+        return name;
+    }
+
+    /**
+     * Create the normalize() function passed to a loader plugin's
+     * normalize method.
+     */
+    function makeNormalize(relName) {
+        return function (name) {
+            return normalize(name, relName);
+        };
+    }
+
+    function makeLoad(id) {
+        function load(value) {
+            loaderCache[id] = value;
+        }
+
+        load.fromText = function (id, text) {
+            //This one is difficult because the text can/probably uses
+            //define, and any relative paths and requires should be relative
+            //to that id was it would be found on disk. But this would require
+            //bootstrapping a module/require fairly deeply from node core.
+            //Not sure how best to go about that yet.
+            throw new Error('amdefine does not implement load.fromText');
+        };
+
+        return load;
+    }
+
+    makeRequire = function (systemRequire, exports, module, relId) {
+        function amdRequire(deps, callback) {
+            if (typeof deps === 'string') {
+                //Synchronous, single module require('')
+                return stringRequire(systemRequire, exports, module, deps, relId);
+            } else {
+                //Array of dependencies with a callback.
+
+                //Convert the dependencies to modules.
+                deps = deps.map(function (depName) {
+                    return stringRequire(systemRequire, exports, module, depName, relId);
+                });
+
+                //Wait for next tick to call back the require call.
+                process.nextTick(function () {
+                    callback.apply(null, deps);
+                });
+            }
+        }
+
+        amdRequire.toUrl = function (filePath) {
+            if (filePath.indexOf('.') === 0) {
+                return normalize(filePath, path.dirname(module.filename));
+            } else {
+                return filePath;
+            }
+        };
+
+        return amdRequire;
+    };
+
+    //Favor explicit value, passed in if the module wants to support Node 0.4.
+    require = require || function req() {
+        return module.require.apply(module, arguments);
+    };
+
+    function runFactory(id, deps, factory) {
+        var r, e, m, result;
+
+        if (id) {
+            e = loaderCache[id] = {};
+            m = {
+                id: id,
+                uri: __filename,
+                exports: e
+            };
+            r = makeRequire(require, e, m, id);
+        } else {
+            //Only support one define call per file
+            if (alreadyCalled) {
+                throw new Error('amdefine with no module ID cannot be called more than once per file.');
+            }
+            alreadyCalled = true;
+
+            //Use the real variables from node
+            //Use module.exports for exports, since
+            //the exports in here is amdefine exports.
+            e = module.exports;
+            m = module;
+            r = makeRequire(require, e, m, module.id);
+        }
+
+        //If there are dependencies, they are strings, so need
+        //to convert them to dependency values.
+        if (deps) {
+            deps = deps.map(function (depName) {
+                return r(depName);
+            });
+        }
+
+        //Call the factory with the right dependencies.
+        if (typeof factory === 'function') {
+            result = factory.apply(module.exports, deps);
+        } else {
+            result = factory;
+        }
+
+        if (result !== undefined) {
+            m.exports = result;
+            if (id) {
+                loaderCache[id] = m.exports;
+            }
+        }
+    }
+
+    stringRequire = function (systemRequire, exports, module, id, relId) {
+        //Split the ID by a ! so that
+        var index = id.indexOf('!'),
+            originalId = id,
+            prefix, plugin;
+
+        if (index === -1) {
+            id = normalize(id, relId);
+
+            //Straight module lookup. If it is one of the special dependencies,
+            //deal with it, otherwise, delegate to node.
+            if (id === 'require') {
+                return makeRequire(systemRequire, exports, module, relId);
+            } else if (id === 'exports') {
+                return exports;
+            } else if (id === 'module') {
+                return module;
+            } else if (loaderCache.hasOwnProperty(id)) {
+                return loaderCache[id];
+            } else if (defineCache[id]) {
+                runFactory.apply(null, defineCache[id]);
+                return loaderCache[id];
+            } else {
+                if(systemRequire) {
+                    return systemRequire(originalId);
+                } else {
+                    throw new Error('No module with ID: ' + id);
+                }
+            }
+        } else {
+            //There is a plugin in play.
+            prefix = id.substring(0, index);
+            id = id.substring(index + 1, id.length);
+
+            plugin = stringRequire(systemRequire, exports, module, prefix, relId);
+
+            if (plugin.normalize) {
+                id = plugin.normalize(id, makeNormalize(relId));
+            } else {
+                //Normalize the ID normally.
+                id = normalize(id, relId);
+            }
+
+            if (loaderCache[id]) {
+                return loaderCache[id];
+            } else {
+                plugin.load(id, makeRequire(systemRequire, exports, module, relId), makeLoad(id), {});
+
+                return loaderCache[id];
+            }
+        }
+    };
+
+    //Create a define function specific to the module asking for amdefine.
+    function define(id, deps, factory) {
+        if (Array.isArray(id)) {
+            factory = deps;
+            deps = id;
+            id = undefined;
+        } else if (typeof id !== 'string') {
+            factory = id;
+            id = deps = undefined;
+        }
+
+        if (deps && !Array.isArray(deps)) {
+            factory = deps;
+            deps = undefined;
+        }
+
+        if (!deps) {
+            deps = ['require', 'exports', 'module'];
+        }
+
+        //Set up properties for this module. If an ID, then use
+        //internal cache. If no ID, then use the external variables
+        //for this node module.
+        if (id) {
+            //Put the module in deep freeze until there is a
+            //require call for it.
+            defineCache[id] = [id, deps, factory];
+        } else {
+            runFactory(id, deps, factory);
+        }
+    }
+
+    //define.require, which has access to all the values in the
+    //cache. Useful for AMD modules that all have IDs in the file,
+    //but need to finally export a value to node based on one of those
+    //IDs.
+    define.require = function (id) {
+        if (loaderCache[id]) {
+            return loaderCache[id];
+        }
+
+        if (defineCache[id]) {
+            runFactory.apply(null, defineCache[id]);
+            return loaderCache[id];
+        }
+    };
+
+    define.amd = {};
+
+    return define;
+}
+
+module.exports = amdefine;
diff --git a/tools/node_modules/source-map/node_modules/amdefine/package.json b/tools/node_modules/source-map/node_modules/amdefine/package.json
new file mode 100644
index 00000000..549197a6
--- /dev/null
+++ b/tools/node_modules/source-map/node_modules/amdefine/package.json
@@ -0,0 +1,40 @@
+{
+  "name": "amdefine",
+  "description": "Provide AMD's define() API for declaring modules in the AMD format",
+  "version": "0.0.5",
+  "homepage": "http://github.com/jrburke/amdefine",
+  "author": {
+    "name": "James Burke",
+    "email": "jrburke@gmail.com",
+    "url": "http://github.com/jrburke"
+  },
+  "licenses": [
+    {
+      "type": "BSD",
+      "url": "https://github.com/jrburke/amdefine/blob/master/LICENSE"
+    },
+    {
+      "type": "MIT",
+      "url": "https://github.com/jrburke/amdefine/blob/master/LICENSE"
+    }
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/jrburke/amdefine.git"
+  },
+  "main": "./amdefine.js",
+  "engines": {
+    "node": ">=0.4.2"
+  },
+  "readme": "# amdefine\n\nA module that can be used to implement AMD's define() in Node. This allows you\nto code to the AMD API and have the module work in node programs without\nrequiring those other programs to use AMD.\n\n## Usage\n\n**1)** Update your package.json to indicate amdefine as a dependency:\n\n```javascript\n    \"dependencies\": {\n        \"amdefine\": \">=0.0.5\"\n    }\n```\n\nThen run `npm install` to get amdefine into your project.\n\n**2)** At the top of each module that uses define(), place this code:\n\n```javascript\nif (typeof define !== 'function') { var define = require('amdefine')(module) }\n```\n\n**Only use these snippets** when loading amdefine. If you preserve the basic structure,\nwith the braces, it will be stripped out when using the [RequireJS optimizer](#optimizer).\n\nYou can add spaces, line breaks and even require amdefine with a local path, but\nkeep the rest of the structure to get the stripping behavior.\n\nAs you may know, because `if` statements in JavaScript don't have their own scope, the var\ndeclaration in the above snippet is made whether the `if` expression is truthy or not. If\nRequireJS is loaded then the declaration is superfluous because `define` is already already\ndeclared in the same scope in RequireJS. Fortunately JavaScript handles multiple `var`\ndeclarations of the same variable in the same scope gracefully.\n\nIf you want to deliver amdefine.js with your code rather than specifying it as a dependency\nwith npm, then just download the latest release and refer to it using a relative path:\n\n[Latest Version](https://github.com/jrburke/amdefine/raw/latest/amdefine.js)\n\n## define() usage\n\nIt is best if you use the anonymous forms of define() in your module:\n\n```javascript\ndefine(function (require) {\n    var dependency = require('dependency');\n});\n```\n\nor\n\n```javascript\ndefine(['dependency'], function (dependency) {\n\n});\n```\n\n## RequireJS optimizer integration. <a name=\"optimizer\"></name>\n\nVersion 1.0.3 of the [RequireJS optimizer](http://requirejs.org/docs/optimization.html)\nwill have support for stripping the `if (typeof define !== 'function')` check\nmentioned above, so you can include this snippet for code that runs in the\nbrowser, but avoid taking the cost of the if() statement once the code is\noptimized for deployment.\n\n## Node 0.4 Support\n\nIf you want to support Node 0.4, then add `require` as the second parameter to amdefine:\n\n```javascript\n//Only if you want Node 0.4. If using 0.5 or later, use the above snippet.\nif (typeof define !== 'function') { var define = require('amdefine')(module, require) }\n```\n\n## Limitations\n\n### Synchronous vs Asynchronous\n\namdefine creates a define() function that is callable by your code. It will\nexecute and trace dependencies and call the factory function *synchronously*,\nto keep the behavior in line with Node's synchronous dependency tracing.\n\nThe exception: calling AMD's callback-style require() from inside a factory\nfunction. The require callback is called on process.nextTick():\n\n```javascript\ndefine(function (require) {\n    require(['a'], function(a) {\n        //'a' is loaded synchronously, but\n        //this callback is called on process.nextTick().\n    });\n});\n```\n\n### Loader Plugins\n\nLoader plugins are supported as long as they call their load() callbacks\nsynchronously. So ones that do network requests will not work. However plugins\nlike [text](http://requirejs.org/docs/api.html#text) can load text files locally.\n\nThe plugin API's `load.fromText()` is **not supported** in amdefine, so this means\ntranspiler plugins like the [CoffeeScript loader plugin](https://github.com/jrburke/require-cs)\nwill not work. This may be fixable, but it is a bit complex, and I do not have\nenough node-fu to figure it out yet. See the source for amdefine.js if you want\nto get an idea of the issues involved.\n\n## Tests\n\nTo run the tests, cd to **tests** and run:\n\n```\nnode all.js\n```\n\n## License\n\nNew BSD and MIT. Check the LICENSE file for all the details.\n",
+  "readmeFilename": "README.md",
+  "bugs": {
+    "url": "https://github.com/jrburke/amdefine/issues"
+  },
+  "_id": "amdefine@0.0.5",
+  "dist": {
+    "shasum": "86b6e9470f8cde955ef7daa3cf5d544ba81aa3db"
+  },
+  "_from": "amdefine@>=0.0.4",
+  "_resolved": "https://registry.npmjs.org/amdefine/-/amdefine-0.0.5.tgz"
+}
diff --git a/tools/node_modules/source-map/package.json b/tools/node_modules/source-map/package.json
new file mode 100644
index 00000000..4d2e3725
--- /dev/null
+++ b/tools/node_modules/source-map/package.json
@@ -0,0 +1,81 @@
+{
+  "name": "source-map",
+  "description": "Generates and consumes source maps",
+  "version": "0.1.22",
+  "homepage": "https://github.com/mozilla/source-map",
+  "author": {
+    "name": "Nick Fitzgerald",
+    "email": "nfitzgerald@mozilla.com"
+  },
+  "contributors": [
+    {
+      "name": "Stephen Crane"
+    },
+    {
+      "name": "Ryan Seddon"
+    },
+    {
+      "name": "Mihai Bazon",
+      "email": "mihai.bazon@gmail.com"
+    },
+    {
+      "name": "Michael Ficarra",
+      "email": "github.public.email@michael.ficarra.me"
+    },
+    {
+      "name": "Todd Wolfson",
+      "email": "todd@twolfson.com"
+    },
+    {
+      "name": "Alexander Solovyov",
+      "email": "alexander@solovyov.net"
+    },
+    {
+      "name": "Felix Gnass"
+    },
+    {
+      "name": "Conrad Irwin",
+      "email": "conrad.irwin@gmail.com"
+    },
+    {
+      "name": "github.com/usrbincc"
+    }
+  ],
+  "repository": {
+    "type": "git",
+    "url": "http://github.com/mozilla/source-map.git"
+  },
+  "directories": {
+    "lib": "./lib"
+  },
+  "main": "./lib/source-map.js",
+  "engines": {
+    "node": ">=0.8.0"
+  },
+  "licenses": [
+    {
+      "type": "BSD",
+      "url": "http://opensource.org/licenses/BSD-3-Clause"
+    }
+  ],
+  "dependencies": {
+    "amdefine": ">=0.0.4"
+  },
+  "devDependencies": {
+    "dryice": ">=0.4.8"
+  },
+  "scripts": {
+    "test": "node test/run-tests.js"
+  },
+  "readme": "# Source Map\n\nThis is a library to generate and consume the source map format\n[described here][format].\n\n[Learn more here][feature].\n\nThis library was written in the Asynchronous Module Definition\nformat. It should work in the following environments:\n\n* Modern Browsers (either after the build, or with an AMD loader such as\n  RequireJS)\n\n* Inside Firefox (as a JSM file, after the build)\n\n* With NodeJS versions 0.8.X and higher\n\n## Installing with NPM (for use with NodeJS)\n\nSimply\n\n    $ npm install source-map\n\nOr, if you'd like to hack on this library and have it installed via npm so you\ncan try out your changes:\n\n    $ git clone https://fitzgen@github.com/mozilla/source-map.git\n    $ cd source-map\n    $ npm link .\n\n## Building from Source (for everywhere else)\n\nInstall Node and then run\n\n    $ git clone https://fitzgen@github.com/mozilla/source-map.git\n    $ cd source-map\n    $ npm link .\n\nNext, run\n\n    $ node Makefile.dryice.js`\n\nThis should create the following files:\n\n* `dist/source-map.js` - The unminified browser version.\n\n* `dist/source-map.min.js` - The minified browser version.\n\n* `dist/SourceMap.jsm` - The JavaScript Module for inclusion in Firefox\n  source.\n\n## API\n\nGet a reference to the module:\n\n    // NodeJS\n    var sourceMap = require('source-map');\n\n    // Browser builds\n    var sourceMap = window.sourceMap;\n\n    // Inside Firefox\n    let sourceMap = {};\n    Components.utils.import('resource:///modules/devtools/SourceMap.jsm', sourceMap);\n\n### SourceMapConsumer\n\nA SourceMapConsumer instance represents a parsed source map which we can query\nfor information about the original file positions by giving it a file position\nin the generated source.\n\n#### new SourceMapConsumer(rawSourceMap)\n\nThe only parameter is the raw source map (either as a string which can be\n`JSON.parse`'d, or an object). According to the spec, source maps have the\nfollowing attributes:\n\n* `version`: Which version of the source map spec this map is following.\n\n* `sources`: An array of URLs to the original source files.\n\n* `names`: An array of identifiers which can be referrenced by individual\n  mappings.\n\n* `sourceRoot`: Optional. The URL root from which all sources are relative.\n\n* `sourcesContent`: Optional. An array of contents of the original source files.\n\n* `mappings`: A string of base64 VLQs which contain the actual mappings.\n\n* `file`: The generated filename this source map is associated with.\n\n#### SourceMapConsumer.prototype.originalPositionFor(generatedPosition)\n\nReturns the original source, line, and column information for the generated\nsource's line and column positions provided. The only argument is an object with\nthe following properties:\n\n* `line`: The line number in the generated source.\n\n* `column`: The column number in the generated source.\n\nand an object is returned with the following properties:\n\n* `source`: The original source file, or null if this information is not\n  available.\n\n* `line`: The line number in the original source, or null if this information is\n  not available.\n\n* `column`: The column number in the original source, or null or null if this\n  information is not available.\n\n* `name`: The original identifier, or null if this information is not available.\n\n#### SourceMapConsumer.prototype.generatedPositionFor(originalPosition)\n\nReturns the generated line and column information for the original source,\nline, and column positions provided. The only argument is an object with\nthe following properties:\n\n* `source`: The filename of the original source.\n\n* `line`: The line number in the original source.\n\n* `column`: The column number in the original source.\n\nand an object is returned with the following properties:\n\n* `line`: The line number in the generated source, or null.\n\n* `column`: The column number in the generated source, or null.\n\n#### SourceMapConsumer.prototype.sourceContentFor(source)\n\nReturns the original source content for the source provided. The only\nargument is the URL of the original source file.\n\n#### SourceMapConsumer.prototype.eachMapping(callback, context, order)\n\nIterate over each mapping between an original source/line/column and a\ngenerated line/column in this source map.\n\n* `callback`: The function that is called with each mapping.\n\n* `context`: Optional. If specified, this object will be the value of `this`\n  every time that `callback` is called.\n\n* `order`: Either `SourceMapConsumer.GENERATED_ORDER` or\n  `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to iterate over\n  the mappings sorted by the generated file's line/column order or the\n  original's source/line/column order, respectively. Defaults to\n  `SourceMapConsumer.GENERATED_ORDER`.\n\n### SourceMapGenerator\n\nAn instance of the SourceMapGenerator represents a source map which is being\nbuilt incrementally.\n\n#### new SourceMapGenerator(startOfSourceMap)\n\nTo create a new one, you must pass an object with the following properties:\n\n* `file`: The filename of the generated source that this source map is\n  associated with.\n\n* `sourceRoot`: An optional root for all relative URLs in this source map.\n\n#### SourceMapGenerator.fromSourceMap(sourceMapConsumer)\n\nCreates a new SourceMapGenerator based on a SourceMapConsumer\n\n* `sourceMapConsumer` The SourceMap.\n\n#### SourceMapGenerator.prototype.addMapping(mapping)\n\nAdd a single mapping from original source line and column to the generated\nsource's line and column for this source map being created. The mapping object\nshould have the following properties:\n\n* `generated`: An object with the generated line and column positions.\n\n* `original`: An object with the original line and column positions.\n\n* `source`: The original source file (relative to the sourceRoot).\n\n* `name`: An optional original token name for this mapping.\n\n#### SourceMapGenerator.prototype.setSourceContent(sourceFile, sourceContent)\n\nSet the source content for an original source file.\n\n* `sourceFile` the URL of the original source file.\n\n* `sourceContent` the content of the source file.\n\n#### SourceMapGenerator.prototype.applySourceMap(sourceMapConsumer[, sourceFile])\n\nApplies a SourceMap for a source file to the SourceMap.\nEach mapping to the supplied source file is rewritten using the\nsupplied SourceMap. Note: The resolution for the resulting mappings\nis the minimium of this map and the supplied map.\n\n* `sourceMapConsumer`: The SourceMap to be applied.\n\n* `sourceFile`: Optional. The filename of the source file.\n  If omitted, sourceMapConsumer.file will be used.\n\n#### SourceMapGenerator.prototype.toString()\n\nRenders the source map being generated to a string.\n\n### SourceNode\n\nSourceNodes provide a way to abstract over interpolating and/or concatenating\nsnippets of generated JavaScript source code, while maintaining the line and\ncolumn information associated between those snippets and the original source\ncode. This is useful as the final intermediate representation a compiler might\nuse before outputting the generated JS and source map.\n\n#### new SourceNode(line, column, source[, chunk[, name]])\n\n* `line`: The original line number associated with this source node, or null if\n  it isn't associated with an original line.\n\n* `column`: The original column number associated with this source node, or null\n  if it isn't associated with an original column.\n\n* `source`: The original source's filename.\n\n* `chunk`: Optional. Is immediately passed to `SourceNode.prototype.add`, see\n  below.\n\n* `name`: Optional. The original identifier.\n\n#### SourceNode.fromStringWithSourceMap(code, sourceMapConsumer)\n\nCreates a SourceNode from generated code and a SourceMapConsumer.\n\n* `code`: The generated code\n\n* `sourceMapConsumer` The SourceMap for the generated code\n\n#### SourceNode.prototype.add(chunk)\n\nAdd a chunk of generated JS to this source node.\n\n* `chunk`: A string snippet of generated JS code, another instance of\n   `SourceNode`, or an array where each member is one of those things.\n\n#### SourceNode.prototype.prepend(chunk)\n\nPrepend a chunk of generated JS to this source node.\n\n* `chunk`: A string snippet of generated JS code, another instance of\n   `SourceNode`, or an array where each member is one of those things.\n\n#### SourceNode.prototype.setSourceContent(sourceFile, sourceContent)\n\nSet the source content for a source file. This will be added to the\n`SourceMap` in the `sourcesContent` field.\n\n* `sourceFile`: The filename of the source file\n\n* `sourceContent`: The content of the source file\n\n#### SourceNode.prototype.walk(fn)\n\nWalk over the tree of JS snippets in this node and its children. The walking\nfunction is called once for each snippet of JS and is passed that snippet and\nthe its original associated source's line/column location.\n\n* `fn`: The traversal function.\n\n#### SourceNode.prototype.walkSourceContents(fn)\n\nWalk over the tree of SourceNodes. The walking function is called for each\nsource file content and is passed the filename and source content.\n\n* `fn`: The traversal function.\n\n#### SourceNode.prototype.join(sep)\n\nLike `Array.prototype.join` except for SourceNodes. Inserts the separator\nbetween each of this source node's children.\n\n* `sep`: The separator.\n\n#### SourceNode.prototype.replaceRight(pattern, replacement)\n\nCall `String.prototype.replace` on the very right-most source snippet. Useful\nfor trimming whitespace from the end of a source node, etc.\n\n* `pattern`: The pattern to replace.\n\n* `replacement`: The thing to replace the pattern with.\n\n#### SourceNode.prototype.toString()\n\nReturn the string representation of this source node. Walks over the tree and\nconcatenates all the various snippets together to one string.\n\n### SourceNode.prototype.toStringWithSourceMap(startOfSourceMap)\n\nReturns the string representation of this tree of source nodes, plus a\nSourceMapGenerator which contains all the mappings between the generated and\noriginal sources.\n\nThe arguments are the same as those to `new SourceMapGenerator`.\n\n## Tests\n\n[![Build Status](https://travis-ci.org/mozilla/source-map.png?branch=master)](https://travis-ci.org/mozilla/source-map)\n\nInstall NodeJS version 0.8.0 or greater, then run `node test/run-tests.js`.\n\nTo add new tests, create a new file named `test/test-<your new test name>.js`\nand export your test functions with names that start with \"test\", for example\n\n    exports[\"test doing the foo bar\"] = function (assert, util) {\n      ...\n    };\n\nThe new test will be located automatically when you run the suite.\n\nThe `util` argument is the test utility module located at `test/source-map/util`.\n\nThe `assert` argument is a cut down version of node's assert module. You have\naccess to the following assertion functions:\n\n* `doesNotThrow`\n\n* `equal`\n\n* `ok`\n\n* `strictEqual`\n\n* `throws`\n\n(The reason for the restricted set of test functions is because we need the\ntests to run inside Firefox's test suite as well and so the assert module is\nshimmed in that environment. See `build/assert-shim.js`.)\n\n[format]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit\n[feature]: https://wiki.mozilla.org/DevTools/Features/SourceMap\n[Dryice]: https://github.com/mozilla/dryice\n",
+  "readmeFilename": "README.md",
+  "bugs": {
+    "url": "https://github.com/mozilla/source-map/issues"
+  },
+  "_id": "source-map@0.1.22",
+  "dist": {
+    "shasum": "9fae7473bfa775de276dc258aa265802478a3db9"
+  },
+  "_from": "source-map@",
+  "_resolved": "https://registry.npmjs.org/source-map/-/source-map-0.1.22.tgz"
+}
diff --git a/tools/node_modules/source-map/test/run-tests.js b/tools/node_modules/source-map/test/run-tests.js
new file mode 100755
index 00000000..8bf2256f
--- /dev/null
+++ b/tools/node_modules/source-map/test/run-tests.js
@@ -0,0 +1,73 @@
+#!/usr/bin/env node
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+var assert = require('assert');
+var fs = require('fs');
+var path = require('path');
+var util = require('./source-map/util');
+
+function run(tests) {
+  var failures = [];
+  var total = 0;
+  var passed = 0;
+
+  for (var i = 0; i < tests.length; i++) {
+    for (var k in tests[i].testCase) {
+      if (/^test/.test(k)) {
+        total++;
+        try {
+          tests[i].testCase[k](assert, util);
+          passed++;
+          process.stdout.write('.');
+        }
+        catch (e) {
+          failures.push({
+            name: tests[i].name + ': ' + k,
+            error: e
+          });
+          process.stdout.write('E');
+        }
+      }
+    }
+  }
+
+  process.stdout.write('\n');
+  console.log(passed + ' / ' + total + ' tests passed.');
+
+  failures.forEach(function (f) {
+    console.log('================================================================================');
+    console.log(f.name);
+    console.log('--------------------------------------------------------------------------------');
+    console.log(f.error.stack);
+  });
+
+  return failures.length;
+}
+
+var code;
+
+process.stdout.on('close', function () {
+  process.exit(code);
+});
+
+function isTestFile(f) {
+  return /^test\-.*?\.js/.test(f);
+}
+
+function toModule(f) {
+  return './source-map/' + f.replace(/\.js$/, '');
+}
+
+var requires = fs.readdirSync(path.join(__dirname, 'source-map')).filter(isTestFile).map(toModule);
+
+code = run(requires.map(require).map(function (mod, i) {
+  return {
+    name: requires[i],
+    testCase: mod
+  };
+}));
+process.exit(code);
diff --git a/tools/node_modules/source-map/test/source-map/test-api.js b/tools/node_modules/source-map/test/source-map/test-api.js
new file mode 100644
index 00000000..63eb45a0
--- /dev/null
+++ b/tools/node_modules/source-map/test/source-map/test-api.js
@@ -0,0 +1,26 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2012 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+    var define = require('amdefine')(module);
+}
+define(function (require, exports, module) {
+
+  var sourceMap;
+  try {
+    sourceMap = require('../../lib/source-map');
+  } catch (e) {
+    sourceMap = {};
+    Components.utils.import('resource:///modules/devtools/SourceMap.jsm', sourceMap);
+  }
+
+  exports['test that the api is properly exposed in the top level'] = function (assert, util) {
+    assert.equal(typeof sourceMap.SourceMapGenerator, "function");
+    assert.equal(typeof sourceMap.SourceMapConsumer, "function");
+    assert.equal(typeof sourceMap.SourceNode, "function");
+  };
+
+});
diff --git a/tools/node_modules/source-map/test/source-map/test-array-set.js b/tools/node_modules/source-map/test/source-map/test-array-set.js
new file mode 100644
index 00000000..c4e88d36
--- /dev/null
+++ b/tools/node_modules/source-map/test/source-map/test-array-set.js
@@ -0,0 +1,71 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+    var define = require('amdefine')(module);
+}
+define(function (require, exports, module) {
+
+  var ArraySet = require('../../lib/source-map/array-set').ArraySet;
+
+  function makeTestSet() {
+    var set = new ArraySet();
+    for (var i = 0; i < 100; i++) {
+      set.add(String(i));
+    }
+    return set;
+  }
+
+  exports['test .has() membership'] = function (assert, util) {
+    var set = makeTestSet();
+    for (var i = 0; i < 100; i++) {
+      assert.ok(set.has(String(i)));
+    }
+  };
+
+  exports['test .indexOf() elements'] = function (assert, util) {
+    var set = makeTestSet();
+    for (var i = 0; i < 100; i++) {
+      assert.strictEqual(set.indexOf(String(i)), i);
+    }
+  };
+
+  exports['test .at() indexing'] = function (assert, util) {
+    var set = makeTestSet();
+    for (var i = 0; i < 100; i++) {
+      assert.strictEqual(set.at(i), String(i));
+    }
+  };
+
+  exports['test creating from an array'] = function (assert, util) {
+    var set = ArraySet.fromArray(['foo', 'bar', 'baz', 'quux', 'hasOwnProperty']);
+
+    assert.ok(set.has('foo'));
+    assert.ok(set.has('bar'));
+    assert.ok(set.has('baz'));
+    assert.ok(set.has('quux'));
+    assert.ok(set.has('hasOwnProperty'));
+
+    assert.strictEqual(set.indexOf('foo'), 0);
+    assert.strictEqual(set.indexOf('bar'), 1);
+    assert.strictEqual(set.indexOf('baz'), 2);
+    assert.strictEqual(set.indexOf('quux'), 3);
+
+    assert.strictEqual(set.at(0), 'foo');
+    assert.strictEqual(set.at(1), 'bar');
+    assert.strictEqual(set.at(2), 'baz');
+    assert.strictEqual(set.at(3), 'quux');
+  };
+
+  exports['test that you can add __proto__; see github issue #30'] = function (assert, util) {
+    var set = new ArraySet();
+    set.add('__proto__');
+    assert.ok(set.has('__proto__'));
+    assert.strictEqual(set.at(0), '__proto__');
+    assert.strictEqual(set.indexOf('__proto__'), 0);
+  };
+
+});
diff --git a/tools/node_modules/source-map/test/source-map/test-base64-vlq.js b/tools/node_modules/source-map/test/source-map/test-base64-vlq.js
new file mode 100644
index 00000000..7100da35
--- /dev/null
+++ b/tools/node_modules/source-map/test/source-map/test-base64-vlq.js
@@ -0,0 +1,24 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+    var define = require('amdefine')(module);
+}
+define(function (require, exports, module) {
+
+  var base64VLQ = require('../../lib/source-map/base64-vlq');
+
+  exports['test normal encoding and decoding'] = function (assert, util) {
+    var result;
+    for (var i = -255; i < 256; i++) {
+      result = base64VLQ.decode(base64VLQ.encode(i));
+      assert.ok(result);
+      assert.equal(result.value, i);
+      assert.equal(result.rest, "");
+    }
+  };
+
+});
diff --git a/tools/node_modules/source-map/test/source-map/test-base64.js b/tools/node_modules/source-map/test/source-map/test-base64.js
new file mode 100644
index 00000000..23e0f886
--- /dev/null
+++ b/tools/node_modules/source-map/test/source-map/test-base64.js
@@ -0,0 +1,35 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+    var define = require('amdefine')(module);
+}
+define(function (require, exports, module) {
+
+  var base64 = require('../../lib/source-map/base64');
+
+  exports['test out of range encoding'] = function (assert, util) {
+    assert.throws(function () {
+      base64.encode(-1);
+    });
+    assert.throws(function () {
+      base64.encode(64);
+    });
+  };
+
+  exports['test out of range decoding'] = function (assert, util) {
+    assert.throws(function () {
+      base64.decode('=');
+    });
+  };
+
+  exports['test normal encoding and decoding'] = function (assert, util) {
+    for (var i = 0; i < 64; i++) {
+      assert.equal(base64.decode(base64.encode(i)), i);
+    }
+  };
+
+});
diff --git a/tools/node_modules/source-map/test/source-map/test-binary-search.js b/tools/node_modules/source-map/test/source-map/test-binary-search.js
new file mode 100644
index 00000000..41d0bf85
--- /dev/null
+++ b/tools/node_modules/source-map/test/source-map/test-binary-search.js
@@ -0,0 +1,54 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+    var define = require('amdefine')(module);
+}
+define(function (require, exports, module) {
+
+  var binarySearch = require('../../lib/source-map/binary-search');
+
+  function numberCompare(a, b) {
+    return a - b;
+  }
+
+  exports['test too high'] = function (assert, util) {
+    var needle = 30;
+    var haystack = [2,4,6,8,10,12,14,16,18,20];
+
+    assert.doesNotThrow(function () {
+      binarySearch.search(needle, haystack, numberCompare);
+    });
+
+    assert.equal(binarySearch.search(needle, haystack, numberCompare), 20);
+  };
+
+  exports['test too low'] = function (assert, util) {
+    var needle = 1;
+    var haystack = [2,4,6,8,10,12,14,16,18,20];
+
+    assert.doesNotThrow(function () {
+      binarySearch.search(needle, haystack, numberCompare);
+    });
+
+    assert.equal(binarySearch.search(needle, haystack, numberCompare), null);
+  };
+
+  exports['test exact search'] = function (assert, util) {
+    var needle = 4;
+    var haystack = [2,4,6,8,10,12,14,16,18,20];
+
+    assert.equal(binarySearch.search(needle, haystack, numberCompare), 4);
+  };
+
+  exports['test fuzzy search'] = function (assert, util) {
+    var needle = 19;
+    var haystack = [2,4,6,8,10,12,14,16,18,20];
+
+    assert.equal(binarySearch.search(needle, haystack, numberCompare), 18);
+  };
+
+});
diff --git a/tools/node_modules/source-map/test/source-map/test-dog-fooding.js b/tools/node_modules/source-map/test/source-map/test-dog-fooding.js
new file mode 100644
index 00000000..d433bf6b
--- /dev/null
+++ b/tools/node_modules/source-map/test/source-map/test-dog-fooding.js
@@ -0,0 +1,72 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+    var define = require('amdefine')(module);
+}
+define(function (require, exports, module) {
+
+  var SourceMapConsumer = require('../../lib/source-map/source-map-consumer').SourceMapConsumer;
+  var SourceMapGenerator = require('../../lib/source-map/source-map-generator').SourceMapGenerator;
+
+  exports['test eating our own dog food'] = function (assert, util) {
+    var smg = new SourceMapGenerator({
+      file: 'testing.js',
+      sourceRoot: '/wu/tang'
+    });
+
+    smg.addMapping({
+      source: 'gza.coffee',
+      original: { line: 1, column: 0 },
+      generated: { line: 2, column: 2 }
+    });
+
+    smg.addMapping({
+      source: 'gza.coffee',
+      original: { line: 2, column: 0 },
+      generated: { line: 3, column: 2 }
+    });
+
+    smg.addMapping({
+      source: 'gza.coffee',
+      original: { line: 3, column: 0 },
+      generated: { line: 4, column: 2 }
+    });
+
+    smg.addMapping({
+      source: 'gza.coffee',
+      original: { line: 4, column: 0 },
+      generated: { line: 5, column: 2 }
+    });
+
+    var smc = new SourceMapConsumer(smg.toString());
+
+    // Exact
+    util.assertMapping(2, 2, '/wu/tang/gza.coffee', 1, 0, null, smc, assert);
+    util.assertMapping(3, 2, '/wu/tang/gza.coffee', 2, 0, null, smc, assert);
+    util.assertMapping(4, 2, '/wu/tang/gza.coffee', 3, 0, null, smc, assert);
+    util.assertMapping(5, 2, '/wu/tang/gza.coffee', 4, 0, null, smc, assert);
+
+    // Fuzzy
+
+    // Original to generated
+    util.assertMapping(2, 0, null, null, null, null, smc, assert, true);
+    util.assertMapping(2, 9, '/wu/tang/gza.coffee', 1, 0, null, smc, assert, true);
+    util.assertMapping(3, 0, '/wu/tang/gza.coffee', 1, 0, null, smc, assert, true);
+    util.assertMapping(3, 9, '/wu/tang/gza.coffee', 2, 0, null, smc, assert, true);
+    util.assertMapping(4, 0, '/wu/tang/gza.coffee', 2, 0, null, smc, assert, true);
+    util.assertMapping(4, 9, '/wu/tang/gza.coffee', 3, 0, null, smc, assert, true);
+    util.assertMapping(5, 0, '/wu/tang/gza.coffee', 3, 0, null, smc, assert, true);
+    util.assertMapping(5, 9, '/wu/tang/gza.coffee', 4, 0, null, smc, assert, true);
+
+    // Generated to original
+    util.assertMapping(2, 2, '/wu/tang/gza.coffee', 1, 1, null, smc, assert, null, true);
+    util.assertMapping(3, 2, '/wu/tang/gza.coffee', 2, 3, null, smc, assert, null, true);
+    util.assertMapping(4, 2, '/wu/tang/gza.coffee', 3, 6, null, smc, assert, null, true);
+    util.assertMapping(5, 2, '/wu/tang/gza.coffee', 4, 9, null, smc, assert, null, true);
+  };
+
+});
diff --git a/tools/node_modules/source-map/test/source-map/test-source-map-consumer.js b/tools/node_modules/source-map/test/source-map/test-source-map-consumer.js
new file mode 100644
index 00000000..610d4635
--- /dev/null
+++ b/tools/node_modules/source-map/test/source-map/test-source-map-consumer.js
@@ -0,0 +1,291 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+    var define = require('amdefine')(module);
+}
+define(function (require, exports, module) {
+
+  var SourceMapConsumer = require('../../lib/source-map/source-map-consumer').SourceMapConsumer;
+  var SourceMapGenerator = require('../../lib/source-map/source-map-generator').SourceMapGenerator;
+
+  exports['test that we can instantiate with a string or an objects'] = function (assert, util) {
+    assert.doesNotThrow(function () {
+      var map = new SourceMapConsumer(util.testMap);
+    });
+    assert.doesNotThrow(function () {
+      var map = new SourceMapConsumer(JSON.stringify(util.testMap));
+    });
+  };
+
+  exports['test that the `sources` field has the original sources'] = function (assert, util) {
+    var map = new SourceMapConsumer(util.testMap);
+    var sources = map.sources;
+
+    assert.equal(sources[0], '/the/root/one.js');
+    assert.equal(sources[1], '/the/root/two.js');
+    assert.equal(sources.length, 2);
+  };
+
+  exports['test that the source root is reflected in a mapping\'s source field'] = function (assert, util) {
+    var map = new SourceMapConsumer(util.testMap);
+    var mapping;
+
+    mapping = map.originalPositionFor({
+      line: 2,
+      column: 1
+    });
+    assert.equal(mapping.source, '/the/root/two.js');
+
+    mapping = map.originalPositionFor({
+      line: 1,
+      column: 1
+    });
+    assert.equal(mapping.source, '/the/root/one.js');
+  };
+
+  exports['test mapping tokens back exactly'] = function (assert, util) {
+    var map = new SourceMapConsumer(util.testMap);
+
+    util.assertMapping(1, 1, '/the/root/one.js', 1, 1, null, map, assert);
+    util.assertMapping(1, 5, '/the/root/one.js', 1, 5, null, map, assert);
+    util.assertMapping(1, 9, '/the/root/one.js', 1, 11, null, map, assert);
+    util.assertMapping(1, 18, '/the/root/one.js', 1, 21, 'bar', map, assert);
+    util.assertMapping(1, 21, '/the/root/one.js', 2, 3, null, map, assert);
+    util.assertMapping(1, 28, '/the/root/one.js', 2, 10, 'baz', map, assert);
+    util.assertMapping(1, 32, '/the/root/one.js', 2, 14, 'bar', map, assert);
+
+    util.assertMapping(2, 1, '/the/root/two.js', 1, 1, null, map, assert);
+    util.assertMapping(2, 5, '/the/root/two.js', 1, 5, null, map, assert);
+    util.assertMapping(2, 9, '/the/root/two.js', 1, 11, null, map, assert);
+    util.assertMapping(2, 18, '/the/root/two.js', 1, 21, 'n', map, assert);
+    util.assertMapping(2, 21, '/the/root/two.js', 2, 3, null, map, assert);
+    util.assertMapping(2, 28, '/the/root/two.js', 2, 10, 'n', map, assert);
+  };
+
+  exports['test mapping tokens fuzzy'] = function (assert, util) {
+    var map = new SourceMapConsumer(util.testMap);
+
+    // Finding original positions
+    util.assertMapping(1, 20, '/the/root/one.js', 1, 21, 'bar', map, assert, true);
+    util.assertMapping(1, 30, '/the/root/one.js', 2, 10, 'baz', map, assert, true);
+    util.assertMapping(2, 12, '/the/root/two.js', 1, 11, null, map, assert, true);
+
+    // Finding generated positions
+    util.assertMapping(1, 18, '/the/root/one.js', 1, 22, 'bar', map, assert, null, true);
+    util.assertMapping(1, 28, '/the/root/one.js', 2, 13, 'baz', map, assert, null, true);
+    util.assertMapping(2, 9, '/the/root/two.js', 1, 16, null, map, assert, null, true);
+  };
+
+  exports['test creating source map consumers with )]}\' prefix'] = function (assert, util) {
+    assert.doesNotThrow(function () {
+      var map = new SourceMapConsumer(")]}'" + JSON.stringify(util.testMap));
+    });
+  };
+
+  exports['test eachMapping'] = function (assert, util) {
+    var map = new SourceMapConsumer(util.testMap);
+    var previousLine = -Infinity;
+    var previousColumn = -Infinity;
+    map.eachMapping(function (mapping) {
+      assert.ok(mapping.generatedLine >= previousLine);
+
+      if (mapping.source) {
+        assert.equal(mapping.source.indexOf(util.testMap.sourceRoot), 0);
+      }
+
+      if (mapping.generatedLine === previousLine) {
+        assert.ok(mapping.generatedColumn >= previousColumn);
+        previousColumn = mapping.generatedColumn;
+      }
+      else {
+        previousLine = mapping.generatedLine;
+        previousColumn = -Infinity;
+      }
+    });
+  };
+
+  exports['test iterating over mappings in a different order'] = function (assert, util) {
+    var map = new SourceMapConsumer(util.testMap);
+    var previousLine = -Infinity;
+    var previousColumn = -Infinity;
+    var previousSource = "";
+    map.eachMapping(function (mapping) {
+      assert.ok(mapping.source >= previousSource);
+
+      if (mapping.source === previousSource) {
+        assert.ok(mapping.originalLine >= previousLine);
+
+        if (mapping.originalLine === previousLine) {
+          assert.ok(mapping.originalColumn >= previousColumn);
+          previousColumn = mapping.originalColumn;
+        }
+        else {
+          previousLine = mapping.originalLine;
+          previousColumn = -Infinity;
+        }
+      }
+      else {
+        previousSource = mapping.source;
+        previousLine = -Infinity;
+        previousColumn = -Infinity;
+      }
+    }, null, SourceMapConsumer.ORIGINAL_ORDER);
+  };
+
+  exports['test that we can set the context for `this` in eachMapping'] = function (assert, util) {
+    var map = new SourceMapConsumer(util.testMap);
+    var context = {};
+    map.eachMapping(function () {
+      assert.equal(this, context);
+    }, context);
+  };
+
+  exports['test that the `sourcesContent` field has the original sources'] = function (assert, util) {
+    var map = new SourceMapConsumer(util.testMapWithSourcesContent);
+    var sourcesContent = map.sourcesContent;
+
+    assert.equal(sourcesContent[0], ' ONE.foo = function (bar) {\n   return baz(bar);\n };');
+    assert.equal(sourcesContent[1], ' TWO.inc = function (n) {\n   return n + 1;\n };');
+    assert.equal(sourcesContent.length, 2);
+  };
+
+  exports['test that we can get the original sources for the sources'] = function (assert, util) {
+    var map = new SourceMapConsumer(util.testMapWithSourcesContent);
+    var sources = map.sources;
+
+    assert.equal(map.sourceContentFor(sources[0]), ' ONE.foo = function (bar) {\n   return baz(bar);\n };');
+    assert.equal(map.sourceContentFor(sources[1]), ' TWO.inc = function (n) {\n   return n + 1;\n };');
+    assert.equal(map.sourceContentFor("one.js"), ' ONE.foo = function (bar) {\n   return baz(bar);\n };');
+    assert.equal(map.sourceContentFor("two.js"), ' TWO.inc = function (n) {\n   return n + 1;\n };');
+    assert.throws(function () {
+      map.sourceContentFor("");
+    }, Error);
+    assert.throws(function () {
+      map.sourceContentFor("/the/root/three.js");
+    }, Error);
+    assert.throws(function () {
+      map.sourceContentFor("three.js");
+    }, Error);
+  };
+
+  exports['test sourceRoot + generatedPositionFor'] = function (assert, util) {
+    var map = new SourceMapGenerator({
+      sourceRoot: 'foo/bar',
+      file: 'baz.js'
+    });
+    map.addMapping({
+      original: { line: 1, column: 1 },
+      generated: { line: 2, column: 2 },
+      source: 'bang.coffee'
+    });
+    map.addMapping({
+      original: { line: 5, column: 5 },
+      generated: { line: 6, column: 6 },
+      source: 'bang.coffee'
+    });
+    map = new SourceMapConsumer(map.toString());
+
+    // Should handle without sourceRoot.
+    var pos = map.generatedPositionFor({
+      line: 1,
+      column: 1,
+      source: 'bang.coffee'
+    });
+
+    assert.equal(pos.line, 2);
+    assert.equal(pos.column, 2);
+
+    // Should handle with sourceRoot.
+    var pos = map.generatedPositionFor({
+      line: 1,
+      column: 1,
+      source: 'foo/bar/bang.coffee'
+    });
+
+    assert.equal(pos.line, 2);
+    assert.equal(pos.column, 2);
+  };
+
+  exports['test sourceRoot + originalPositionFor'] = function (assert, util) {
+    var map = new SourceMapGenerator({
+      sourceRoot: 'foo/bar',
+      file: 'baz.js'
+    });
+    map.addMapping({
+      original: { line: 1, column: 1 },
+      generated: { line: 2, column: 2 },
+      source: 'bang.coffee'
+    });
+    map = new SourceMapConsumer(map.toString());
+
+    var pos = map.originalPositionFor({
+      line: 2,
+      column: 2,
+    });
+
+    // Should always have the prepended source root
+    assert.equal(pos.source, 'foo/bar/bang.coffee');
+    assert.equal(pos.line, 1);
+    assert.equal(pos.column, 1);
+  };
+
+  exports['test github issue #56'] = function (assert, util) {
+    var map = new SourceMapGenerator({
+      sourceRoot: 'http://',
+      file: 'www.example.com/foo.js'
+    });
+    map.addMapping({
+      original: { line: 1, column: 1 },
+      generated: { line: 2, column: 2 },
+      source: 'www.example.com/original.js'
+    });
+    map = new SourceMapConsumer(map.toString());
+
+    var sources = map.sources;
+    assert.equal(sources.length, 1);
+    assert.equal(sources[0], 'http://www.example.com/original.js');
+  };
+
+  exports['test github issue #43'] = function (assert, util) {
+    var map = new SourceMapGenerator({
+      sourceRoot: 'http://example.com',
+      file: 'foo.js'
+    });
+    map.addMapping({
+      original: { line: 1, column: 1 },
+      generated: { line: 2, column: 2 },
+      source: 'http://cdn.example.com/original.js'
+    });
+    map = new SourceMapConsumer(map.toString());
+
+    var sources = map.sources;
+    assert.equal(sources.length, 1,
+                 'Should only be one source.');
+    assert.equal(sources[0], 'http://cdn.example.com/original.js',
+                 'Should not be joined with the sourceRoot.');
+  };
+
+  exports['test absolute path, but same host sources'] = function (assert, util) {
+    var map = new SourceMapGenerator({
+      sourceRoot: 'http://example.com/foo/bar',
+      file: 'foo.js'
+    });
+    map.addMapping({
+      original: { line: 1, column: 1 },
+      generated: { line: 2, column: 2 },
+      source: '/original.js'
+    });
+    map = new SourceMapConsumer(map.toString());
+
+    var sources = map.sources;
+    assert.equal(sources.length, 1,
+                 'Should only be one source.');
+    assert.equal(sources[0], 'http://example.com/original.js',
+                 'Source should be relative the host of the source root.');
+  };
+
+});
diff --git a/tools/node_modules/source-map/test/source-map/test-source-map-generator.js b/tools/node_modules/source-map/test/source-map/test-source-map-generator.js
new file mode 100644
index 00000000..2c42c8ca
--- /dev/null
+++ b/tools/node_modules/source-map/test/source-map/test-source-map-generator.js
@@ -0,0 +1,391 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+    var define = require('amdefine')(module);
+}
+define(function (require, exports, module) {
+
+  var SourceMapGenerator = require('../../lib/source-map/source-map-generator').SourceMapGenerator;
+  var SourceMapConsumer = require('../../lib/source-map/source-map-consumer').SourceMapConsumer;
+  var SourceNode = require('../../lib/source-map/source-node').SourceNode;
+  var util = require('./util');
+
+  exports['test some simple stuff'] = function (assert, util) {
+    var map = new SourceMapGenerator({
+      file: 'foo.js',
+      sourceRoot: '.'
+    });
+    assert.ok(true);
+  };
+
+  exports['test JSON serialization'] = function (assert, util) {
+    var map = new SourceMapGenerator({
+      file: 'foo.js',
+      sourceRoot: '.'
+    });
+    assert.equal(map.toString(), JSON.stringify(map));
+  };
+
+  exports['test adding mappings (case 1)'] = function (assert, util) {
+    var map = new SourceMapGenerator({
+      file: 'generated-foo.js',
+      sourceRoot: '.'
+    });
+
+    assert.doesNotThrow(function () {
+      map.addMapping({
+        generated: { line: 1, column: 1 }
+      });
+    });
+  };
+
+  exports['test adding mappings (case 2)'] = function (assert, util) {
+    var map = new SourceMapGenerator({
+      file: 'generated-foo.js',
+      sourceRoot: '.'
+    });
+
+    assert.doesNotThrow(function () {
+      map.addMapping({
+        generated: { line: 1, column: 1 },
+        source: 'bar.js',
+        original: { line: 1, column: 1 }
+      });
+    });
+  };
+
+  exports['test adding mappings (case 3)'] = function (assert, util) {
+    var map = new SourceMapGenerator({
+      file: 'generated-foo.js',
+      sourceRoot: '.'
+    });
+
+    assert.doesNotThrow(function () {
+      map.addMapping({
+        generated: { line: 1, column: 1 },
+        source: 'bar.js',
+        original: { line: 1, column: 1 },
+        name: 'someToken'
+      });
+    });
+  };
+
+  exports['test adding mappings (invalid)'] = function (assert, util) {
+    var map = new SourceMapGenerator({
+      file: 'generated-foo.js',
+      sourceRoot: '.'
+    });
+
+    // Not enough info.
+    assert.throws(function () {
+      map.addMapping({});
+    });
+
+    // Original file position, but no source.
+    assert.throws(function () {
+      map.addMapping({
+        generated: { line: 1, column: 1 },
+        original: { line: 1, column: 1 }
+      });
+    });
+  };
+
+  exports['test that the correct mappings are being generated'] = function (assert, util) {
+    var map = new SourceMapGenerator({
+      file: 'min.js',
+      sourceRoot: '/the/root'
+    });
+
+    map.addMapping({
+      generated: { line: 1, column: 1 },
+      original: { line: 1, column: 1 },
+      source: 'one.js'
+    });
+    map.addMapping({
+      generated: { line: 1, column: 5 },
+      original: { line: 1, column: 5 },
+      source: 'one.js'
+    });
+    map.addMapping({
+      generated: { line: 1, column: 9 },
+      original: { line: 1, column: 11 },
+      source: 'one.js'
+    });
+    map.addMapping({
+      generated: { line: 1, column: 18 },
+      original: { line: 1, column: 21 },
+      source: 'one.js',
+      name: 'bar'
+    });
+    map.addMapping({
+      generated: { line: 1, column: 21 },
+      original: { line: 2, column: 3 },
+      source: 'one.js'
+    });
+    map.addMapping({
+      generated: { line: 1, column: 28 },
+      original: { line: 2, column: 10 },
+      source: 'one.js',
+      name: 'baz'
+    });
+    map.addMapping({
+      generated: { line: 1, column: 32 },
+      original: { line: 2, column: 14 },
+      source: 'one.js',
+      name: 'bar'
+    });
+
+    map.addMapping({
+      generated: { line: 2, column: 1 },
+      original: { line: 1, column: 1 },
+      source: 'two.js'
+    });
+    map.addMapping({
+      generated: { line: 2, column: 5 },
+      original: { line: 1, column: 5 },
+      source: 'two.js'
+    });
+    map.addMapping({
+      generated: { line: 2, column: 9 },
+      original: { line: 1, column: 11 },
+      source: 'two.js'
+    });
+    map.addMapping({
+      generated: { line: 2, column: 18 },
+      original: { line: 1, column: 21 },
+      source: 'two.js',
+      name: 'n'
+    });
+    map.addMapping({
+      generated: { line: 2, column: 21 },
+      original: { line: 2, column: 3 },
+      source: 'two.js'
+    });
+    map.addMapping({
+      generated: { line: 2, column: 28 },
+      original: { line: 2, column: 10 },
+      source: 'two.js',
+      name: 'n'
+    });
+
+    map = JSON.parse(map.toString());
+
+    util.assertEqualMaps(assert, map, util.testMap);
+  };
+
+  exports['test that source content can be set'] = function (assert, util) {
+    var map = new SourceMapGenerator({
+      file: 'min.js',
+      sourceRoot: '/the/root'
+    });
+    map.addMapping({
+      generated: { line: 1, column: 1 },
+      original: { line: 1, column: 1 },
+      source: 'one.js'
+    });
+    map.addMapping({
+      generated: { line: 2, column: 1 },
+      original: { line: 1, column: 1 },
+      source: 'two.js'
+    });
+    map.setSourceContent('one.js', 'one file content');
+
+    map = JSON.parse(map.toString());
+    assert.equal(map.sources[0], 'one.js');
+    assert.equal(map.sources[1], 'two.js');
+    assert.equal(map.sourcesContent[0], 'one file content');
+    assert.equal(map.sourcesContent[1], null);
+  };
+
+  exports['test .fromSourceMap'] = function (assert, util) {
+    var map = SourceMapGenerator.fromSourceMap(new SourceMapConsumer(util.testMap));
+    util.assertEqualMaps(assert, map.toJSON(), util.testMap);
+  };
+
+  exports['test .fromSourceMap with sourcesContent'] = function (assert, util) {
+    var map = SourceMapGenerator.fromSourceMap(
+      new SourceMapConsumer(util.testMapWithSourcesContent));
+    util.assertEqualMaps(assert, map.toJSON(), util.testMapWithSourcesContent);
+  };
+
+  exports['test applySourceMap'] = function (assert, util) {
+    var node = new SourceNode(null, null, null, [
+      new SourceNode(2, 0, 'fileX', 'lineX2\n'),
+      'genA1\n',
+      new SourceNode(2, 0, 'fileY', 'lineY2\n'),
+      'genA2\n',
+      new SourceNode(1, 0, 'fileX', 'lineX1\n'),
+      'genA3\n',
+      new SourceNode(1, 0, 'fileY', 'lineY1\n')
+    ]);
+    var mapStep1 = node.toStringWithSourceMap({
+      file: 'fileA'
+    }).map;
+    mapStep1.setSourceContent('fileX', 'lineX1\nlineX2\n');
+    mapStep1 = mapStep1.toJSON();
+
+    node = new SourceNode(null, null, null, [
+      'gen1\n',
+      new SourceNode(1, 0, 'fileA', 'lineA1\n'),
+      new SourceNode(2, 0, 'fileA', 'lineA2\n'),
+      new SourceNode(3, 0, 'fileA', 'lineA3\n'),
+      new SourceNode(4, 0, 'fileA', 'lineA4\n'),
+      new SourceNode(1, 0, 'fileB', 'lineB1\n'),
+      new SourceNode(2, 0, 'fileB', 'lineB2\n'),
+      'gen2\n'
+    ]);
+    var mapStep2 = node.toStringWithSourceMap({
+      file: 'fileGen'
+    }).map;
+    mapStep2.setSourceContent('fileB', 'lineB1\nlineB2\n');
+    mapStep2 = mapStep2.toJSON();
+
+    node = new SourceNode(null, null, null, [
+      'gen1\n',
+      new SourceNode(2, 0, 'fileX', 'lineA1\n'),
+      new SourceNode(2, 0, 'fileA', 'lineA2\n'),
+      new SourceNode(2, 0, 'fileY', 'lineA3\n'),
+      new SourceNode(4, 0, 'fileA', 'lineA4\n'),
+      new SourceNode(1, 0, 'fileB', 'lineB1\n'),
+      new SourceNode(2, 0, 'fileB', 'lineB2\n'),
+      'gen2\n'
+    ]);
+    var expectedMap = node.toStringWithSourceMap({
+      file: 'fileGen'
+    }).map;
+    expectedMap.setSourceContent('fileX', 'lineX1\nlineX2\n');
+    expectedMap.setSourceContent('fileB', 'lineB1\nlineB2\n');
+    expectedMap = expectedMap.toJSON();
+
+    // apply source map "mapStep1" to "mapStep2"
+    var generator = SourceMapGenerator.fromSourceMap(new SourceMapConsumer(mapStep2));
+    generator.applySourceMap(new SourceMapConsumer(mapStep1));
+    var actualMap = generator.toJSON();
+
+    util.assertEqualMaps(assert, actualMap, expectedMap);
+  };
+
+  exports['test sorting with duplicate generated mappings'] = function (assert, util) {
+    var map = new SourceMapGenerator({
+      file: 'test.js'
+    });
+    map.addMapping({
+      generated: { line: 3, column: 0 },
+      original: { line: 2, column: 0 },
+      source: 'a.js'
+    });
+    map.addMapping({
+      generated: { line: 2, column: 0 }
+    });
+    map.addMapping({
+      generated: { line: 2, column: 0 }
+    });
+    map.addMapping({
+      generated: { line: 1, column: 0 },
+      original: { line: 1, column: 0 },
+      source: 'a.js'
+    });
+
+    util.assertEqualMaps(assert, map.toJSON(), {
+      version: 3,
+      file: 'test.js',
+      sources: ['a.js'],
+      names: [],
+      mappings: 'AAAA;A;AACA'
+    });
+  };
+
+  exports['test ignore duplicate mappings.'] = function (assert, util) {
+    var init = { file: 'min.js', sourceRoot: '/the/root' };
+    var map1, map2;
+
+    // null original source location
+    var nullMapping1 = {
+      generated: { line: 1, column: 0 }
+    };
+    var nullMapping2 = {
+      generated: { line: 2, column: 2 }
+    };
+
+    map1 = new SourceMapGenerator(init);
+    map2 = new SourceMapGenerator(init);
+
+    map1.addMapping(nullMapping1);
+    map1.addMapping(nullMapping1);
+
+    map2.addMapping(nullMapping1);
+
+    util.assertEqualMaps(assert, map1.toJSON(), map2.toJSON());
+
+    map1.addMapping(nullMapping2);
+    map1.addMapping(nullMapping1);
+
+    map2.addMapping(nullMapping2);
+
+    util.assertEqualMaps(assert, map1.toJSON(), map2.toJSON());
+
+    // original source location
+    var srcMapping1 = {
+      generated: { line: 1, column: 0 },
+      original: { line: 11, column: 0 },
+      source: 'srcMapping1.js'
+    };
+    var srcMapping2 = {
+      generated: { line: 2, column: 2 },
+      original: { line: 11, column: 0 },
+      source: 'srcMapping2.js'
+    };
+
+    map1 = new SourceMapGenerator(init);
+    map2 = new SourceMapGenerator(init);
+
+    map1.addMapping(srcMapping1);
+    map1.addMapping(srcMapping1);
+
+    map2.addMapping(srcMapping1);
+
+    util.assertEqualMaps(assert, map1.toJSON(), map2.toJSON());
+
+    map1.addMapping(srcMapping2);
+    map1.addMapping(srcMapping1);
+
+    map2.addMapping(srcMapping2);
+
+    util.assertEqualMaps(assert, map1.toJSON(), map2.toJSON());
+
+    // full original source and name information
+    var fullMapping1 = {
+      generated: { line: 1, column: 0 },
+      original: { line: 11, column: 0 },
+      source: 'fullMapping1.js',
+      name: 'fullMapping1'
+    };
+    var fullMapping2 = {
+      generated: { line: 2, column: 2 },
+      original: { line: 11, column: 0 },
+      source: 'fullMapping2.js',
+      name: 'fullMapping2'
+    };
+
+    map1 = new SourceMapGenerator(init);
+    map2 = new SourceMapGenerator(init);
+
+    map1.addMapping(fullMapping1);
+    map1.addMapping(fullMapping1);
+
+    map2.addMapping(fullMapping1);
+
+    util.assertEqualMaps(assert, map1.toJSON(), map2.toJSON());
+
+    map1.addMapping(fullMapping2);
+    map1.addMapping(fullMapping1);
+
+    map2.addMapping(fullMapping2);
+
+    util.assertEqualMaps(assert, map1.toJSON(), map2.toJSON());
+  };
+});
diff --git a/tools/node_modules/source-map/test/source-map/test-source-node.js b/tools/node_modules/source-map/test/source-map/test-source-node.js
new file mode 100644
index 00000000..231dd7bd
--- /dev/null
+++ b/tools/node_modules/source-map/test/source-map/test-source-node.js
@@ -0,0 +1,282 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+    var define = require('amdefine')(module);
+}
+define(function (require, exports, module) {
+
+  var SourceMapGenerator = require('../../lib/source-map/source-map-generator').SourceMapGenerator;
+  var SourceMapConsumer = require('../../lib/source-map/source-map-consumer').SourceMapConsumer;
+  var SourceNode = require('../../lib/source-map/source-node').SourceNode;
+
+  exports['test .add()'] = function (assert, util) {
+    var node = new SourceNode(null, null, null);
+
+    // Adding a string works.
+    node.add('function noop() {}');
+
+    // Adding another source node works.
+    node.add(new SourceNode(null, null, null));
+
+    // Adding an array works.
+    node.add(['function foo() {',
+              new SourceNode(null, null, null,
+                             'return 10;'),
+              '}']);
+
+    // Adding other stuff doesn't.
+    assert.throws(function () {
+      node.add({});
+    });
+    assert.throws(function () {
+      node.add(function () {});
+    });
+  };
+
+  exports['test .prepend()'] = function (assert, util) {
+    var node = new SourceNode(null, null, null);
+
+    // Prepending a string works.
+    node.prepend('function noop() {}');
+    assert.equal(node.children[0], 'function noop() {}');
+    assert.equal(node.children.length, 1);
+
+    // Prepending another source node works.
+    node.prepend(new SourceNode(null, null, null));
+    assert.equal(node.children[0], '');
+    assert.equal(node.children[1], 'function noop() {}');
+    assert.equal(node.children.length, 2);
+
+    // Prepending an array works.
+    node.prepend(['function foo() {',
+              new SourceNode(null, null, null,
+                             'return 10;'),
+              '}']);
+    assert.equal(node.children[0], 'function foo() {');
+    assert.equal(node.children[1], 'return 10;');
+    assert.equal(node.children[2], '}');
+    assert.equal(node.children[3], '');
+    assert.equal(node.children[4], 'function noop() {}');
+    assert.equal(node.children.length, 5);
+
+    // Prepending other stuff doesn't.
+    assert.throws(function () {
+      node.prepend({});
+    });
+    assert.throws(function () {
+      node.prepend(function () {});
+    });
+  };
+
+  exports['test .toString()'] = function (assert, util) {
+    assert.equal((new SourceNode(null, null, null,
+                                 ['function foo() {',
+                                  new SourceNode(null, null, null, 'return 10;'),
+                                  '}'])).toString(),
+                 'function foo() {return 10;}');
+  };
+
+  exports['test .join()'] = function (assert, util) {
+    assert.equal((new SourceNode(null, null, null,
+                                 ['a', 'b', 'c', 'd'])).join(', ').toString(),
+                 'a, b, c, d');
+  };
+
+  exports['test .walk()'] = function (assert, util) {
+    var node = new SourceNode(null, null, null,
+                              ['(function () {\n',
+                               '  ', new SourceNode(1, 0, 'a.js', ['someCall()']), ';\n',
+                               '  ', new SourceNode(2, 0, 'b.js', ['if (foo) bar()']), ';\n',
+                               '}());']);
+    var expected = [
+      { str: '(function () {\n', source: null,   line: null, column: null },
+      { str: '  ',               source: null,   line: null, column: null },
+      { str: 'someCall()',       source: 'a.js', line: 1,    column: 0    },
+      { str: ';\n',              source: null,   line: null, column: null },
+      { str: '  ',               source: null,   line: null, column: null },
+      { str: 'if (foo) bar()',   source: 'b.js', line: 2,    column: 0    },
+      { str: ';\n',              source: null,   line: null, column: null },
+      { str: '}());',            source: null,   line: null, column: null },
+    ];
+    var i = 0;
+    node.walk(function (chunk, loc) {
+      assert.equal(expected[i].str, chunk);
+      assert.equal(expected[i].source, loc.source);
+      assert.equal(expected[i].line, loc.line);
+      assert.equal(expected[i].column, loc.column);
+      i++;
+    });
+  };
+
+  exports['test .replaceRight'] = function (assert, util) {
+    var node;
+
+    // Not nested
+    node = new SourceNode(null, null, null, 'hello world');
+    node.replaceRight(/world/, 'universe');
+    assert.equal(node.toString(), 'hello universe');
+
+    // Nested
+    node = new SourceNode(null, null, null,
+                          [new SourceNode(null, null, null, 'hey sexy mama, '),
+                           new SourceNode(null, null, null, 'want to kill all humans?')]);
+    node.replaceRight(/kill all humans/, 'watch Futurama');
+    assert.equal(node.toString(), 'hey sexy mama, want to watch Futurama?');
+  };
+
+  exports['test .toStringWithSourceMap()'] = function (assert, util) {
+    var node = new SourceNode(null, null, null,
+                              ['(function () {\n',
+                               '  ',
+                                 new SourceNode(1, 0, 'a.js', 'someCall', 'originalCall'),
+                                 new SourceNode(1, 8, 'a.js', '()'),
+                                 ';\n',
+                               '  ', new SourceNode(2, 0, 'b.js', ['if (foo) bar()']), ';\n',
+                               '}());']);
+    var map = node.toStringWithSourceMap({
+      file: 'foo.js'
+    }).map;
+
+    assert.ok(map instanceof SourceMapGenerator, 'map instanceof SourceMapGenerator');
+    map = new SourceMapConsumer(map.toString());
+
+    var actual;
+
+    actual = map.originalPositionFor({
+      line: 1,
+      column: 4
+    });
+    assert.equal(actual.source, null);
+    assert.equal(actual.line, null);
+    assert.equal(actual.column, null);
+
+    actual = map.originalPositionFor({
+      line: 2,
+      column: 2
+    });
+    assert.equal(actual.source, 'a.js');
+    assert.equal(actual.line, 1);
+    assert.equal(actual.column, 0);
+    assert.equal(actual.name, 'originalCall');
+
+    actual = map.originalPositionFor({
+      line: 3,
+      column: 2
+    });
+    assert.equal(actual.source, 'b.js');
+    assert.equal(actual.line, 2);
+    assert.equal(actual.column, 0);
+
+    actual = map.originalPositionFor({
+      line: 3,
+      column: 16
+    });
+    assert.equal(actual.source, null);
+    assert.equal(actual.line, null);
+    assert.equal(actual.column, null);
+
+    actual = map.originalPositionFor({
+      line: 4,
+      column: 2
+    });
+    assert.equal(actual.source, null);
+    assert.equal(actual.line, null);
+    assert.equal(actual.column, null);
+  };
+
+  exports['test .fromStringWithSourceMap()'] = function (assert, util) {
+    var node = SourceNode.fromStringWithSourceMap(
+                              util.testGeneratedCode,
+                              new SourceMapConsumer(util.testMap));
+
+    var result = node.toStringWithSourceMap({
+      file: 'min.js'
+    });
+    var map = result.map;
+    var code = result.code;
+
+    assert.equal(code, util.testGeneratedCode);
+    assert.ok(map instanceof SourceMapGenerator, 'map instanceof SourceMapGenerator');
+    map = map.toJSON();
+    assert.equal(map.version, util.testMap.version);
+    assert.equal(map.file, util.testMap.file);
+    assert.equal(map.mappings, util.testMap.mappings);
+  };
+
+  exports['test .fromStringWithSourceMap() complex version'] = function (assert, util) {
+    var input = new SourceNode(null, null, null, [
+      "(function() {\n",
+        "  var Test = {};\n",
+        "  ", new SourceNode(1, 0, "a.js", "Test.A = { value: 1234 };\n"),
+        "  ", new SourceNode(2, 0, "a.js", "Test.A.x = 'xyz';"), "\n",
+        "}());\n",
+        "/* Generated Source */"]);
+    input = input.toStringWithSourceMap({
+      file: 'foo.js'
+    });
+
+    var node = SourceNode.fromStringWithSourceMap(
+                              input.code,
+                              new SourceMapConsumer(input.map.toString()));
+
+    var result = node.toStringWithSourceMap({
+      file: 'foo.js'
+    });
+    var map = result.map;
+    var code = result.code;
+
+    assert.equal(code, input.code);
+    assert.ok(map instanceof SourceMapGenerator, 'map instanceof SourceMapGenerator');
+    map = map.toJSON();
+    var inputMap = input.map.toJSON();
+    util.assertEqualMaps(assert, map, inputMap);
+  };
+
+  exports['test setSourceContent with toStringWithSourceMap'] = function (assert, util) {
+    var aNode = new SourceNode(1, 1, 'a.js', 'a');
+    aNode.setSourceContent('a.js', 'someContent');
+    var node = new SourceNode(null, null, null,
+                              ['(function () {\n',
+                               '  ', aNode,
+                               '  ', new SourceNode(1, 1, 'b.js', 'b'),
+                               '}());']);
+    node.setSourceContent('b.js', 'otherContent');
+    var map = node.toStringWithSourceMap({
+      file: 'foo.js'
+    }).map;
+
+    assert.ok(map instanceof SourceMapGenerator, 'map instanceof SourceMapGenerator');
+    map = new SourceMapConsumer(map.toString());
+
+    assert.equal(map.sources.length, 2);
+    assert.equal(map.sources[0], 'a.js');
+    assert.equal(map.sources[1], 'b.js');
+    assert.equal(map.sourcesContent.length, 2);
+    assert.equal(map.sourcesContent[0], 'someContent');
+    assert.equal(map.sourcesContent[1], 'otherContent');
+  };
+
+  exports['test walkSourceContents'] = function (assert, util) {
+    var aNode = new SourceNode(1, 1, 'a.js', 'a');
+    aNode.setSourceContent('a.js', 'someContent');
+    var node = new SourceNode(null, null, null,
+                              ['(function () {\n',
+                               '  ', aNode,
+                               '  ', new SourceNode(1, 1, 'b.js', 'b'),
+                               '}());']);
+    node.setSourceContent('b.js', 'otherContent');
+    var results = [];
+    node.walkSourceContents(function (sourceFile, sourceContent) {
+      results.push([sourceFile, sourceContent]);
+    });
+    assert.equal(results.length, 2);
+    assert.equal(results[0][0], 'a.js');
+    assert.equal(results[0][1], 'someContent');
+    assert.equal(results[1][0], 'b.js');
+    assert.equal(results[1][1], 'otherContent');
+  };
+});
diff --git a/tools/node_modules/source-map/test/source-map/util.js b/tools/node_modules/source-map/test/source-map/util.js
new file mode 100644
index 00000000..3e19fc90
--- /dev/null
+++ b/tools/node_modules/source-map/test/source-map/util.js
@@ -0,0 +1,152 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+    var define = require('amdefine')(module);
+}
+define(function (require, exports, module) {
+
+  var util = require('../../lib/source-map/util');
+
+  // This is a test mapping which maps functions from two different files
+  // (one.js and two.js) to a minified generated source.
+  //
+  // Here is one.js:
+  //
+  //   ONE.foo = function (bar) {
+  //     return baz(bar);
+  //   };
+  //
+  // Here is two.js:
+  //
+  //   TWO.inc = function (n) {
+  //     return n + 1;
+  //   };
+  //
+  // And here is the generated code (min.js):
+  //
+  //   ONE.foo=function(a){return baz(a);};
+  //   TWO.inc=function(a){return a+1;};
+  exports.testGeneratedCode = " ONE.foo=function(a){return baz(a);};\n"+
+                              " TWO.inc=function(a){return a+1;};";
+  exports.testMap = {
+    version: 3,
+    file: 'min.js',
+    names: ['bar', 'baz', 'n'],
+    sources: ['one.js', 'two.js'],
+    sourceRoot: '/the/root',
+    mappings: 'CAAC,IAAI,IAAM,SAAUA,GAClB,OAAOC,IAAID;CCDb,IAAI,IAAM,SAAUE,GAClB,OAAOA'
+  };
+  exports.testMapWithSourcesContent = {
+    version: 3,
+    file: 'min.js',
+    names: ['bar', 'baz', 'n'],
+    sources: ['one.js', 'two.js'],
+    sourcesContent: [
+      ' ONE.foo = function (bar) {\n' +
+      '   return baz(bar);\n' +
+      ' };',
+      ' TWO.inc = function (n) {\n' +
+      '   return n + 1;\n' +
+      ' };'
+    ],
+    sourceRoot: '/the/root',
+    mappings: 'CAAC,IAAI,IAAM,SAAUA,GAClB,OAAOC,IAAID;CCDb,IAAI,IAAM,SAAUE,GAClB,OAAOA'
+  };
+
+  function assertMapping(generatedLine, generatedColumn, originalSource,
+                         originalLine, originalColumn, name, map, assert,
+                         dontTestGenerated, dontTestOriginal) {
+    if (!dontTestOriginal) {
+      var origMapping = map.originalPositionFor({
+        line: generatedLine,
+        column: generatedColumn
+      });
+      assert.equal(origMapping.name, name,
+                   'Incorrect name, expected ' + JSON.stringify(name)
+                   + ', got ' + JSON.stringify(origMapping.name));
+      assert.equal(origMapping.line, originalLine,
+                   'Incorrect line, expected ' + JSON.stringify(originalLine)
+                   + ', got ' + JSON.stringify(origMapping.line));
+      assert.equal(origMapping.column, originalColumn,
+                   'Incorrect column, expected ' + JSON.stringify(originalColumn)
+                   + ', got ' + JSON.stringify(origMapping.column));
+
+      var expectedSource;
+
+      if (originalSource && map.sourceRoot && originalSource.indexOf(map.sourceRoot) === 0) {
+        expectedSource = originalSource;
+      } else if (originalSource) {
+        expectedSource = map.sourceRoot
+          ? util.join(map.sourceRoot, originalSource)
+          : originalSource;
+      } else {
+        expectedSource = null;
+      }
+
+      assert.equal(origMapping.source, expectedSource,
+                   'Incorrect source, expected ' + JSON.stringify(expectedSource)
+                   + ', got ' + JSON.stringify(origMapping.source));
+    }
+
+    if (!dontTestGenerated) {
+      var genMapping = map.generatedPositionFor({
+        source: originalSource,
+        line: originalLine,
+        column: originalColumn
+      });
+      assert.equal(genMapping.line, generatedLine,
+                   'Incorrect line, expected ' + JSON.stringify(generatedLine)
+                   + ', got ' + JSON.stringify(genMapping.line));
+      assert.equal(genMapping.column, generatedColumn,
+                   'Incorrect column, expected ' + JSON.stringify(generatedColumn)
+                   + ', got ' + JSON.stringify(genMapping.column));
+    }
+  }
+  exports.assertMapping = assertMapping;
+
+  function assertEqualMaps(assert, actualMap, expectedMap) {
+    assert.equal(actualMap.version, expectedMap.version, "version mismatch");
+    assert.equal(actualMap.file, expectedMap.file, "file mismatch");
+    assert.equal(actualMap.names.length,
+                 expectedMap.names.length,
+                 "names length mismatch: " +
+                   actualMap.names.join(", ") + " != " + expectedMap.names.join(", "));
+    for (var i = 0; i < actualMap.names.length; i++) {
+      assert.equal(actualMap.names[i],
+                   expectedMap.names[i],
+                   "names[" + i + "] mismatch: " +
+                     actualMap.names.join(", ") + " != " + expectedMap.names.join(", "));
+    }
+    assert.equal(actualMap.sources.length,
+                 expectedMap.sources.length,
+                 "sources length mismatch: " +
+                   actualMap.sources.join(", ") + " != " + expectedMap.sources.join(", "));
+    for (var i = 0; i < actualMap.sources.length; i++) {
+      assert.equal(actualMap.sources[i],
+                   expectedMap.sources[i],
+                   "sources[" + i + "] length mismatch: " +
+                   actualMap.sources.join(", ") + " != " + expectedMap.sources.join(", "));
+    }
+    assert.equal(actualMap.sourceRoot,
+                 expectedMap.sourceRoot,
+                 "sourceRoot mismatch: " +
+                   actualMap.sourceRoot + " != " + expectedMap.sourceRoot);
+    assert.equal(actualMap.mappings, expectedMap.mappings, "mappings mismatch");
+    if (actualMap.sourcesContent) {
+      assert.equal(actualMap.sourcesContent.length,
+                   expectedMap.sourcesContent.length,
+                   "sourcesContent length mismatch");
+      for (var i = 0; i < actualMap.sourcesContent.length; i++) {
+        assert.equal(actualMap.sourcesContent[i],
+                     expectedMap.sourcesContent[i],
+                     "sourcesContent[" + i + "] mismatch");
+      }
+    }
+  }
+  exports.assertEqualMaps = assertEqualMaps;
+
+});