Revert Box2D_v2.2.1 directory to pristine Box2D source.
Makefile changes for webidl bindings.
Simplify bundle.py.
Delete old binding files.
WebIDL bindings for Box2D
Update .gitignore for webidl output files.
Convert html5canvas demo to use WebIDL bindings.
Merge pull request #58 from artillery/webidl-bindings

WebIDL bindings.