JS Bindings 3.0

Gets the JS bindings working with Cocos2d-x 3.0.

Notes:
1. You might want to uncomment the CCLogs in JSBinding.cpp.
2. CCObject -> Ref is not critical, just deprecated.
3. Added jsb-soomla-3-0.cpp instead of editing jsb-soomla.cpp. You might want to just edit jsb-soomla.cpp?