Move off of dryice and to webpack for builds.

We were pretty much the last dryice user, and it isn't worth being on such a
minority build tool when we don't really want to maintain it
ourselves. Additionally, this lets us stop using amdefine and the AMD format,
which was an alright choice in 2011 but has increasinly shown its age. Regular
Common JS modules are used now, which should pave the way for better tree
shaking and unused submodule removal tooling. Note that in order to avoid
ruining `git blame`, this leaves each module indented by two spaces as it was
from the AMD `define` function, and wraps a block around them so that editors
don't freak out too much.

README.md

@@ -3,15 +3,13 @@
 This is a library to generate and consume the source map format
 [described here][format].
 
-This library is written in the Asynchronous Module Definition format, and works
-in the following environments:
+This library is compatible with the following environments:
 
-* Modern Browsers supporting ECMAScript 5 (either after the build, or with an
-  AMD loader such as RequireJS)
+* Node.js versions 0.8.X and higher
 
-* Inside Firefox (as a JSM file, after the build)
+* On the web, with browsers supporting ECMAScript 5 (after the build)
 
-* With NodeJS versions 0.8.X and higher
+* Inside Firefox (after the build)
 
 ## Node
 
@@ -23,19 +21,22 @@ Install Node and then run
 
     $ git clone https://[email protected]/mozilla/source-map.git
     $ cd source-map
-    $ npm link .
 
 Next, run
 
-    $ node Makefile.dryice.js
+    $ npm run build
 
-This should spew a bunch of stuff to stdout, and create the following files:
+This will create the following files:
 
-* `dist/source-map.js` - The unminified browser version.
+* `dist/source-map.js` - The plain browser build.
 
-* `dist/source-map.min.js` - The minified browser version.
+* `dist/source-map.min.js` - The minified browser build.
 
-* `dist/SourceMap.jsm` - The JavaScript Module for inclusion in Firefox source.
+* `dist/source-map.min.js.map` - The source map for the minified browser build.
+
+* `dist/source-map.debug.js` - The debug browser build.
+
+* `dist/source-map.debug.js.map` - The source map for the debug browser build.
 
 ## Examples
 
@@ -152,8 +153,7 @@ var sourceMap = require('source-map');
 var sourceMap = window.sourceMap;
 
 // Inside Firefox
-let sourceMap = {};
-Components.utils.import('resource:///modules/devtools/SourceMap.jsm', sourceMap);
+const sourceMap = require("devtools/toolkit/sourcemap/source-map.js");
 ```
 
 ### SourceMapConsumer
@@ -473,20 +473,19 @@ The arguments are the same as those to `new SourceMapGenerator`.
 
 [![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`.
+Install NodeJS version 0.8.0 or greater, then run `npm test`.
 
-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
+To add new tests, create a new file named
+`test/source-map/test-your-new-test-name.js` and export your test functions with
+names that start with "test", for example
 
 ```js
-exports["test doing the foo bar"] = function (assert, util) {
+exports["test doing the foo bar"] = function (assert) {
   ...
 };
 ```
 
-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 new tests will be located automatically when you run the suite.
 
 The `assert` argument is a cut down version of node's assert module. You have
 access to the following assertion functions:
@@ -502,8 +501,8 @@ access to the following assertion functions:
 * `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`.)
+tests to run inside Firefox's test suite as well and Firefox has a shimmed
+assert module.)
 
 [format]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit
 [feature]: https://wiki.mozilla.org/DevTools/Features/SourceMap