Mms auto-retrieval (1/3): framework

Change-Id: I9b2f76d8cf9d67eddddfdf7737a948eea680329f

It's only porting this http://review.cyanogenmod.org/#/c/26166/
Part 1 of 3
Make contacts app aware of blacklist being disabled (1/3)

Change-Id: Ic59f370a6e78390c9b2b1510e0ec85b2f4af9146

Conflicts:
	core/java/android/provider/Settings.java
Framework: Generic Blacklist support (4 of 5)

Change-Id: Id6c85c9a537713ec77d00deb7f7fe5a9150be2cd

Conflicts:
	core/java/android/provider/Settings.java