Issue #5096: refactor cc.renderer and some sceneGraphe's renderer codes
Merge branch 'Renderer' of https://github.com/cocos2d/cocos2d-html5 into Iss5096_Renderer

Conflicts:
	cocos2d/core/sprites/CCSprite.js
Issue #5096: TMXLayer's renderer has been implemented
Merge branch 'Renderer' of https://github.com/cocos2d/cocos2d-html5 into Iss5096_Renderer
Merge pull request #1928 from dingpinglv/Iss5096_Renderer

Issue #5096: TMXLayer's renderer has been implemented