Merge pull request #2167 from pandamicro/develop

Fixed #5848: Use real texture pixel size in cc.SpriteFrame's initialization
Fixed #5850: Move array utils functions together and put into CCMacro.js
Doc #5829: Fix issues in event-manager inline docs
Merge branch 'develop' of git://github.com/cocos2d/cocos2d-html5 into develop
Doc #5829: Fix issues in LabelTTF inline docs