Settings: customizable slim lockscreen background (2/2)

Add Battery status too.

- color fill (with transparency slider)
- custom image  (with transparency slider)
- full transparent
- default

This Settingspart containes a small comment change for Notificationbackground settings

Patchset 2: cleanup

Change-Id: I6542dd72b02a9fcdbf1159fa95ba64fcfc75796e

Conflicts:
	res/values/arrays.xml
	res/values/strings.xml
	res/xml/lockscreen_interface_settings.xml
	src/com/android/settings/fnv/LockscreenInterface.java
Revert "Dark C-RoM                           .                       Credits to Slim Team..."

This reverts commit d5211a05e42eef88cd5688776cf80f651a53a22c.
Revert "Dark C-RoM                                                  Credits to Slim Team..."

This reverts commit 1df0e8c835eece90248e54def9b34a203f1696b0.
Revert "Settings: Add to be sure also some other apps for TRDS toggle"

This reverts commit 0901318f62c7ec3353027485cefc02e7f8fa23c2.
Revert "Dark C-RoM"

This reverts commit c526a92d775c6a1da0204cf5c1a35e0c3becf0f4.