adds more functions to the shim

also updates spidermonkey and adds three.js test
adds an initial debugger interface
adds require.js

non-minified version
adds goog.base

for inherits and base
adds fast math functions for iOS
new test
just some minor edits
cleaning up a few things
adds audio support
basic reference counting

also some minor fixes to PNGImage
updates debugger script
minor improvements to the polyfill
removes unused code
fixes fullPath for iOS and devicePixelRatio
updated chester.js
some extra tests
updates Xcode project
updates test for bm fonts

also adds some missing assets
new asset
updates Xcode project