Add moar Pie buttons (1/2)

Added:
-Kill task button
-App window button (credit Steve Spear, just adding another way to access)

Also:
-Better Vibrate toggle logic with new images
-Brought back Pie on insecure lockscreen

Change-Id: I3f6497b5f5d27379b945392723c3eba597a241da
Fixed
Merge branch 'jb2' of github.com:arrrghhh/android_frameworks_base into jb2