fix CCBone color/opacity update issue;

CCBone do not update color and opacity correctly; I found that some codes were removed improperly;

https://github.com/cocos2d/cocos2d-html5/commit/d0dca257fc81b8d85c412e05c10b3e80d7b6fe82#diff-bdc63be9f653a18966dbfb63b5642c0fL270