issue #4221 Refactor UILabel to UIText
issue #4221 Refactor constant for widget
issue #4221 Refactor constant for UILayout
issue #4221 Refactor constant for Layout
issue #4221 Refactor constant for ListView
issue #4221 Refactor constant for PageView
issue #4221 Refactor constant for ScrollView
issue #4221 Remove file UISwitch.js
issue #4221 Refactor constant for widgets
issue #4221 Refactor constant for cocostudio action
issue #4221 Refactor constant for armature
issue #4221 fixed bug about setScale9Enabled for UILoadingBar
issue #4221 Refactor setColor and setOpacity for gui
issue #4221 Refactor setColor and setOpacity for gui
Merge branch 'develop-3.0' of https://github.com/cocos2d/cocos2d-html5 into develop-3.0-new
Merge branch 'develop-3.0' of https://github.com/cocos2d/cocos2d-html5 into develop-3.0-new

Conflicts:
	extensions/cocostudio/armature/utils/CCDataReaderHelper.js
Merge pull request #1628 from xingsenma/develop-3.0

issue #4221 Refactor constant for cocostudio