Update tests to work with new structure

This updates the tests to work with the new structure, and removes the
old `utils/run_from_console.js` files in favor of just using Karma
directly.  The Karma debug page now displays the normal mocha HTML, so
we can use that instead of the HTML generation functionality of the old
test runner.

Note that PhantomJS does not work at the moment (PhantomJS 1.5 should
make it possible to test on PhantomJS again).

tests/test.base64.js

@@ -1,7 +1,8 @@
-// requires local modules: base64
 var assert = chai.assert;
 var expect = chai.expect;
 
+import Base64 from '../core/base64.js';
+
 describe('Base64 Tools', function() {
     "use strict";