cocos2d/cocos2d-html5 — pull request #1389 by WanderWang (2013-12-30 03:47:59+00:00)
Title: Optimize CCSpriteFrame's init performance 

_eventListeners in CCSpriteFrame is only need to create when Texture is not loaded .
So I move the this._eventListeners = [] from ctor() to addEventListener();

It will reduce lots of Array init performance cost when Texture is loaded