Merge pull request #2544 from dingpinglv/setTransform

Fixed #2542: fixed a bug of ccui.RichText that its setContentSize is invalid.
Improve cc.view's resize callback logic
Merge branch 'develop' of git://github.com/cocos2d/cocos2d-html5 into develop
Merge pull request #2545 from pandamicro/develop

Improve cc.view's resize callback logic
Fixed: fixed a bug of cc.LabelTTF that its setColor is invalid when enable cascade color
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into setTransform