Fixed #5626: call setUpdateEnabled(false) in onExit function
Merge branch 'develop' of git://github.com/cocos2d/cocos2d-html5 into develop
Improve some docs
Merge pull request #1945 from pandamicro/develop

Fixed #5626: call setUpdateEnabled(false) in onExit function
Issue #5600: sync ccui.Widget, ccui.Button, ccui.CheckBox, ccui.ImageView, ccui.LoadingBar, ccui.RichText
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into Issue5600_Cocostudio