Implement a parallel cc.NotificationCenter for js; When native CCNotificationCenter post a notification, observers in it will be notified; Posting notification from it, observers in native CCNotificationCenter will not be notified;
Merge branch 'master' of https://github.com/cocos2d/cocos2d-x
fix syntax error;
Merge branch 'backToUpsteram'
Merge pull request #2360 from tiantian20007/backToUpsteram

fix syntax error;
Update AUTHORS
Merge branch 'master' of https://github.com/tiantian20007/cocos2d-x into dictStuff
Merge branch 'master' of https://github.com/cocos2d/cocos2d-x into dictStuff