Fixed #5894: adds jsDocs to armature display and utils
Merge branch 'develop' of git://github.com/cocos2d/cocos2d-html5 into Iss5894_CocostudioDocs
Merge pull request #2233 from dingpinglv/Iss5894_CocostudioDocs

Fixed #5894: adds jsDocs to armature display and utils