Contacts: Add support for Blacklist

Requires http://review.cyanogenmod.org/#/c/34904/

Change-Id: Ibc07f5749b7adcc08f106012ba22ae866d004921
Make contacts app aware of phone blacklist setting (3/3)

Change-Id: I46935ca140098ca3f1c1d714ac4a406dd9d7f52e