Missing back button on MultiSimSettings ActionBar

Fixed missing back button on ActionBar (default Settings behavior on
submenus) by adding "parentActivityName" property to MultiSimSettings
activity.

Change-Id: I60a1123be29d81c8232e0acee1ac9544bf9b32e6
[2/2] Prepare NotificationManagerService for new format

* Needed for blacklisting

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>
[2/2] Add support for Peek app

Disable built in peek when Peek app is installed. Enable it again on app's unistall.

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>
Conflicts:
	src/com/android/settings/DisplaySettings.java