support multi touch
fix
define ™.asset.AssetManager
build
bug fix
remove TextureManager
change first argument of sprite to texture.
move Texture class from graphics by asset.
fix
fix
bug fix
Add bower.json
Merge pull request #58 from yosuke-furukawa/add_bower_json

Add bower.json
fix
fix
build
fix
move SpriteSheet class from app to asset.
fix
fix
Merge branch 'develop' of https://github.com/phi1618/tmlib.js into develop

Conflicts:
	build/tmlib.min.js