Merge pull request #16 from cocos2d/v3

update cocos2d-x
Merge pull request #6788 from CocosRobot/update_lua_bindings_1400296789

[AUTO]: updating luabinding automatically
modify vec2
Merge pull request #17 from chuanweizhang2013/v3luaruntime

modify vec2
Merge pull request #6789 from cocoscodeide/v3

update template project vect