[Cocos2d-JS] Improve release notes
Merge branch 'master' of https://github.com/cocos2d/cocos-docs
Add a document to describe how to call c++ from lua
change cocos2d-js download url
[Cocos2d-JS] Improve v2.2.x release notes and catalog
Merge Cocos2d-JS v3.0 alpha2 and V2.2.3 to the summary of release note.
Add more information part.
updated download link
Merge pull request #258 from linshun/master

Merged Cocos2d-JS v3.0 alpha2 and Cocos2d-html5 v2.2.3 to the summary of release note.
Merge pull request #257 from pandamicro/master

[Cocos2d-JS] Improve release notes and catalog
Merge pull request #256 from samuele3hu/luaDocument

Add a document to describe how to call c++ from lua
correct debug lua url
Merge pull request #259 from honghui/master

correct urls
[Cocos2d-JS] Add js about docs
Merge pull request #261 from pandamicro/master

[Cocos2d-JS] Add js about docs
add note for jdk and ide version
[Cocos2d-JS] Improve inheritance doc
Merge pull request #262 from honghui/master

add note for jdk and ide version
Merge pull request #263 from pandamicro/master

[Cocos2d-JS] Improve inheritance doc