Modified CocoStudio file.
Merge branch 'master' of https://github.com/Wu-Hao/TankMultiplayer
Merge branch 'master' of https://github.com/Wu-Hao/TankMultiplayer

Conflicts:
	Classes/MainScreenScene.cpp
Merge branch 'master' of https://github.com/Wu-Hao/TankMultiplayer

Conflicts:
	Classes/MainScreenScene.cpp
Merge pull request #5 from fusijie/master

Integrated the  new GPGS SDK.