Make contacts app aware of blacklist being disabled (1/3)

Change-Id: Ic59f370a6e78390c9b2b1510e0ec85b2f4af9146

Conflicts:
	core/java/android/provider/Settings.java
implement noise suppression for phone calls (1/2)

Change-Id: If51532bd8220fab8722bbb594f70515f9d74b49b
Phone: Sprint MWI Quirk: Phantom message wait indicator workaround (2/2)

Part (1/2) http://review.cyanogenmod.com/#/c/13706/

Change-Id: Iec65915475e6b8224b82feec5571f7bbded0545a