Google Play services divided into small parts - AT LAST (UPDATE - 7.0)

So far, Google didn't allow developers to use a small parts of Google Play Services library - if you want to use just Google Signup - you had to pull whole big library, which end finally in 65K DEX method limit, or use some strange Gradle modification, which slow down building process. At last Google have listened to developers, and split Google Play Services into small libraries along with version 6.5.87 (current is 7.0.0).   For this version, you can …