make loading bar smaller
move qunit tests and add tests for group
add some comments
modify tween calclation
add env.PREVENT_DEFAULT_KEY_CODES
add originX
detaching DOM rendering engine from enchant.Entity class
moved qunit tests from dev/qunit to tests/qunit
add group_rotation test
rearrange Group definition
modify sample
move rasterized test to tests dir
change event propagation method
update event bubbling method
Merge commit of event experimental redesign branch into feature/canvasBased
add description of Node.age
minor fixes for jshint and jsdoc
rename doc/ja, doc/en, and divide them into core/plugins
Merge branch 'develop' into feature/canvasBased

Conflicts:
	dev/enchant.js
	dev/src/CanvasGroup.js
	dev/src/Group.js
	dev/src/Sprite.js
	doc/core/ja/symbols/src/ja_enchant.js.html
	doc/ja/symbols/src/ja_enchant.js.html
	doc/plugins/ja/symbols/src/ja_enchant.js.html
	enchant.js
	enchant.min.js
	ja/enchant.js
add map sample for map test