Revert "LockScreen: allow long-press actions from hardware keys (1/2)"

This reverts commit bea8a28d0205ef1e0936ad840fe308acedba358f.
fixes
Framework: Remove orphaned Theme related code

Change-Id: I930d4cc75e655c5bc37532e6a1425d27bd1ee661

Conflicts:
	services/java/com/android/server/NotificationManagerService.java
GlowPadView : Re-enable magneticTargets

Re-enable magneticTargets and add logic to make it
compatible with lockscreen shortcuts.

Change-Id: I523141f03566804888fde08a116f73ea62ca523e
Framework: Forward port Long press back to kill app

Original author: DaneshM

Change-Id: I54f4fb861897fe713cffa15422535c5091a0c095

Conflicts:
	core/java/android/provider/Settings.java
	core/res/res/values/symbols.xml
	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
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
Add backkill to config

Conflicts:
	core/res/res/values/config.xml