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
Add ignore folders
Merge pull request #59 from yosuke-furukawa/add_bower_json_ignore

Add ignore folders
fix
Merge branch 'develop' of https://github.com/phi1618/tmlib.js into develop
fix
build
fix
Merge branch 'feature/remove_interaction' into develop
fix
fix
fix
fix
Merge branch 'feature/support_newline' into develop
fix
fix