Merge pull request #1994 from dumganhar/iss1724-hellojs

fixed #1724: Renamed libhellojavascript to libcocos2djs.
Updated the submodule of cxx-generator.
Merge pull request #1995 from dumganhar/master

Updated the submodule of cxx-generator.
cocos2dxmatoMac-mini : updating submodule reference to latest autogenerated bindings
issue #1731:change CCSize, CCPoint and CCRect to struct in pkg files
Merge pull request #1996 from CocosRobot/updategeneratedsubmodule_1361239496

cocos2dxmatoMac-mini : updating submodule reference to latest autogenerated bindings
Merge pull request #1997 from minggo/iss1731-lua-declaration

issue #1731:change CCSize, CCPoint and CCRect to struct in pkg files
issue #1724: Adding solution for HelloJavascript.