Fix the single page version of cocos2d-js-tests til the point that PerformanceSpriteTest can be run.

This is accompanied by a [pull request](https://github.com/cocos2d/cocos2d-html5/pull/1004) to `cocos2d-html5`.

I don't claim to know much about the mechanism of the single page version (for example, I have no idea how you are supposed to use the `compile_test` target given that it doesn't include cocos2d. A pointer to the documentation is much appreciated!), but running `ant compile_test_advanced` very soon gave me

>    [jscomp] ERROR - Cannot read: /Users/kennyluck/Projects/cocos2d-html5/samples/tests/S9SpriteTest/S9SpriteTest.js
>    [jscomp] /Users/kennyluck/Projects/cocos2d-html5/samples/tests/tests_resources-html5.js:279: ERROR - Parse error. IE8 (and below) will parse trailing commas in array and object literals incorrectly. If you are targeting newer versions of JS, set the appropriate language_in option.

and this patch fixes this.

Also, this patch doesn't fix all tests (e.g. `PerformanceParticleTest` doesn't work), but I probably don't have time for this before I prepare the tests for our `CCClass.js` submission.

This change syncs the file list to `appFiles` in `tests-boot-html5.js`. Not sure this is the right thing to do.

(Increasing Closure Compiler's warning level seems like a fun thing to do too, but I'll leave that to the future.)