exclude "gradle/" folder
Re-enabled *.iml for checkin
Re-enabled .iml files as recommended by http://stackoverflow.com/questions/16736856/what-should-be-in-my-gitignore-for-an-android-studio-project
Re-enabled .iml files as recommended by http://stackoverflow.com/questions/16736856/what-should-be-in-my-gitignore-for-an-android-studio-project
updated for Android Studio 0.8.2 and gradle 0.12.*
updated for Android Studio 0.8.2 and gradle 0.12.*