add build/readme.md
update Gruntfile (to build enchant.js in default task)
Merge branch 'master' of github.com:wise9/enchant.js
add ignore
async doc generation
bugfix
add usage for LoadingScene
add usage for LoadingScene
fix LoadingScene example
Merge branch 'master' of github.com:wise9/enchant.js

Conflicts:
	dev/enchant.js
	dev/src/LoadingScene.js
modify README.md
Merge branch 'master' into develop