Merge pull request #1740 from pandamicro/develop-3.0

Fixed #4675: Update default cocos2d-html5 path to frameworks
Closed #4708: cc.log bug - not found bind methon of ie9
Merge pull request #1743 from VisualSJ/issuse4708

Closed #4708: cc.log bug - not found bind methon of ie9
Fixed #4706: Fixed IE incompatible issue with __lookupGetter__