Closed #3116: fixed xxxRGBAs' four bugs at setCascadeColorEnabled/setCascadeOpacityEnabled functions
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into Iss3071_xxxRGBA_Bug
Merge pull request #1213 from dingpinglv/Iss3116_xxxRGBA_Bugs

Closed #3116: fixed xxxRGBAs' four bugs at setCascadeColorEnabled/setCascadeOpacityEnabled functions