move favorites and my contacts group handling to the provider and sync adapter

Change-Id: Ia2aa3b7d5ede8ce00adbd957a2cae5d89051cf4c
Merge commit 'dd5c25c65f09ada246c826fb6d04f0b6d4cf4388' into oxygen_4.3

* commit 'dd5c25c65f09ada246c826fb6d04f0b6d4cf4388':
  move favorites and my contacts group handling to the provider and sync adapter

Conflicts:
	src/com/android/providers/contacts/ContactsDatabaseHelper.java