Show advanced reboot if using an insecure lock screen

Enables the advanced reboot menu when locked if the selected lock method
is insecure (= slide unlock).

Change-Id: I759b7b31c5411597e2537a85183d73ec02eb2461
Merge "Show advanced reboot if using an insecure lock screen" into cm-10.1
Merge remote-tracking branch 'upstream/cm-10.1' into cm-10.1

Solved Conflicts:
	services/java/com/android/server/power/ShutdownThread.java

Change-Id: Ia2a9269ebf92f549d8c0d7fa3fae5137229fe133