Issue #5894: add jsDocs to Cocostudio.
Merge branch 'develop' of git://github.com/cocos2d/cocos2d-html5 into Iss5894_CocostudioDocs
Issue #5894: adds jsDocs to widget reader.
Merge branch 'develop' of git://github.com/cocos2d/cocos2d-html5 into Iss5894_CocostudioDocs
Merge pull request #2219 from dingpinglv/Iss5894_CocostudioDocs

Issue #5894: adds jsDocs to Cocostudio.