Framework: Generic Blacklist support (4 of 5)

Change-Id: Id6c85c9a537713ec77d00deb7f7fe5a9150be2cd
Make contacts app aware of blacklist being disabled (1/3)

Change-Id: Ic59f370a6e78390c9b2b1510e0ec85b2f4af9146
Add back increasing ring feature.

Change-Id: Id950d3c19a05e4efb9ed0b36be6a7482dd173965
Merge remote-tracking branch 'upstream/kk4.4' into kk4.4