Telephony: Update Icons to Kitkat

* Icons were still the old Jellybean version.  This is KitKat!!!

Change-Id: Ic2d169e250cefad846b8e82516af095d0b0c2a30
Store phone blacklist in content provider (2/4)

Change-Id: I0fe685ff0a63848d666fc76510e4a331b74b94fe
Improve delete handling code.

Change-Id: I3f09f00a2966ee246056ea11ec55d952da6aabc0
Drop blacklist number uniqueness constraint.

It's very hard to deal with that constraint in practise, so drop the
contraint from the DB and handle potential duplicate rows when querying.

Change-Id: Id28a415ba80cf100879b24de88b4b50638e900ca