Merge pull request #2169 from pandamicro/develop

Docs and refactors
Issue #5830: add jsDocs to layouts
Merge branch 'develop' of git://github.com/cocos2d/cocos2d-html5 into Iss5830_ccuiDoc
Merge pull request #2171 from dingpinglv/Iss5830_ccuiDoc

Issue #5830: add jsDocs to layouts
Issue #5829: ctor and init jsdoc
Issue #5829: ctor and init jsdoc
Fixed #2170: fixed not working frameRate setting.
Merge pull request #2172 from VisualSJ/develop-02

Issue #5829: ctor and init jsdoc
Merge pull request #2173 from VisualSJ/develop-02

Fixed #2170: fixed not working frameRate setting.
Issue #5829: labels jsdoc
Issue #5829: labels jsdoc
Issue #5829: text-input jsdoc
Issue #5829: Motionstreak jsdoc
add doc for folder menus
Merge pull request #2174 from VisualSJ/develop-02

JS DOC
Issue #5829: Actions jsdoc (example and deprecated)
Issue #5830: add jsDocs to uiwidgets
Merge branch 'develop' of git://github.com/cocos2d/cocos2d-html5 into Iss5830_ccuiDoc
Doc #5829: Improve some inline docs
Merge branch 'develop' of git://github.com/cocos2d/cocos2d-html5 into develop