Merge branch 'master' of github.com:Kaibin/Common_iOS

Merge
Merge branch 'master' of github.com:Kaibin/Common_iOS

Merge
Merge branch 'master' of github.com:Kaibin/Common_iOS

Merge
rm .DS_Store
modify .gitignore
Merge branch 'master' of github.com:Kaibin/Common_iOS

merge