Fixed #5880: adds setPlaceHolderColor and setTextColor to ccui.TextField and refactors cc.Menu
Merge branch 'develop' of git://github.com/cocos2d/cocos2d-html5 into Iss5880_TextField
Merge pull request #2214 from dingpinglv/Iss5880_TextField

Fixed #5880: adds setPlaceHolderColor and setTextColor to ccui.TextField and refactors cc.Menu