[1/2] Telephony: Add setting for YellowPages Canada reverse lookup provider

Change-Id: I61e531b795ec39585979682829bb1ca448790df9
Telephony: Incoming Call in Background (2/3)

Patch ported from 4.2 which was done by our lovely HCP. A
very popular one so we bring it back and adapt it to 4.4

Allows user to set that Incoming Call UI will remain in background
if screen is on. Instead, a notification is added to StatusBar, which
can be used to bring up the Incoming Call UI. Ringtone and vibration
still occur as per system settings.

This has the same effect as apps marked as "immersive". It prevents
the incoming call from backgrounding the current activity.

PS: reorder settings a bit

Change-Id: I159bd817ebcc39a0733f9433feb29b310adbc2aa

Conflicts:
	res/values/slim_strings.xml
	res/xml/call_feature_setting.xml
	src/com/android/phone/CallFeaturesSetting.java

fix 2
Telephony: implement noise suppression for phone calls (2/2)
Add People Lookup settings

IC: Code adapted to AICP
PS2: Cleanup strings.