Closed #3117: cc.Node's getBoundingBoxToWorld has been Refactored for Performance
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into Iss3117_RefactorgetBoundingBoxToWorld
Merge pull request #1215 from dingpinglv/Iss3117_RefactorgetBoundingBoxToWorld

Closed #3117: cc.Node's getBoundingBoxToWorld has been Refactored for Performance