Settings: Disable slider shortcuts with custom lockscreen

These are not available with the custom lockscreen.

Change-Id: Ib67b97b597da0cf06d9d36b4fe7b40b55d0e2425
Signed-off-by: Roman Birg <roman@cyngn.com>

Conflicts:

	src/com/android/settings/cyanogenmod/LockscreenInterface.java
Settings: read keyguard package name from overlays

Change-Id: Ief4750c91aa22c2033d31aacfea4cfbe245d61a8
Signed-off-by: Roman Birg <roman@cyngn.com>
Settings: move keyguard wallpaper to system (2/2)

Change-Id: Id3bb66aa78c2e3dbd1170e74e33fcd160e5a70bb
Signed-off-by: Roman Birg <roman@cyngn.com>

Conflicts:

	src/com/android/settings/cyanogenmod/LockscreenInterface.java