Remove Nova Launcher as prebuilt

Signature issue removes the ability to update to current version(s). Default to only Launcher2
and allow user to decide to install third-party launcher (Apex, Nova, ADW, etc.)

Change-Id: I5f20d97be922b79701f2b288e57474e9cae4f79c
Signed-off-by: bmc08gt <bmc08gt.teamb00sted@gmail.com>
Remove old toggle overlays

Change-Id: Id3b6baf550e7c614fe83479ceff3382c638cdfa9
Signed-off-by: Roman Birg <romanbirg@gmail.com>
Merge remote-tracking branch 'upstream/jb-mr1' into jb

Conflicts:
	prebuilt/common/app/NovaLauncher.apk

	modified:   configs/common.mk
	modified:   overlay/common_tablet/packages/apps/ROMControl/res/values/arrays.xml
	modified:   prebuilt/Android.mk
	deleted:    prebuilt/common/app/NovaLauncher.apk