Framework: Bring Long press back kill app toast back

It is now supported thanks to pawitp commiting the context fix for
displaying framework toasts

Change-Id: I8ab1beb49fc3b61355de8bc207482e2f51ff3e2a
Fixups

Change-Id: I6f17c43b09b312f23798416de4e8e9600ff4ef0a
Do not set the network mode differently for LTE+CDMA

ro.telephony.default_network can be set if needed to set a different
value for LTE+CDMA. No need to hardcode preferred network mode in the source code.

Change-Id: Iae65f72a6a3bc31d500c5ecec87368a6f2a5d117

Conflicts:

	packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java
Underp the Underp public API... again

Change-Id: I7841c3c4d58dc224dc0e83f46b06cb1de93987a2

Conflicts:
	core/java/android/view/WindowManager.java
Remove power widget background

Change-Id: I314642782525fc441a651cc2b48b227f663dfeed