Merge pull request #39 from VisualSJ/Iss2416_RefactorRenderer

Issue #2416: The temporary repair of cc.follow
Issue #2416: correct a mistake of cc.TMXLayer
Merge branch 'Iss2416_RefactorRenderer' of https://github.com/dingpinglv/cocos2d-html5 into Iss2416_RefactorRenderer
Merge pull request #40 from VisualSJ/Iss2416_RefactorRenderer

Issue #2416: Fixed armature throw error
Merge branch 'Iss2416_RefactorRenderer' of https://github.com/dingpinglv/cocos2d-html5 into Iss2416_RefactorRenderer