fix warnings
fix DemoGame ios
Merge branch 'master' of github.com:chukong/CocoStudioSamples
delete useless codes for android projects
Merge remote-tracking branch 'geron/master'
DemoGame: delete useless code for android project
DemoCowboyGame: fix window size for mac project
Merge pull request #47 from young40/master

delete useless codes for android projects