updated
Merge branch 'master' of https://github.com/chukong/cocos-docs
updated  3.0rc3
Merge pull request #480 from pandamicro/master

[Cocos2d-JS] Improve doc for v3.0 RC3 release
Merge pull request #479 from gloryming/master

updated js v3.0rc3
removed link
Merge pull request #481 from gloryming/master

removed link
updated catalog
Merge pull request #482 from gloryming/master

updated catalog
[Cocos2d-JS] Improve doc for Facebook SDK
Merge branch 'master' of https://github.com/cocos2d/cocos-docs