Notification sound-to-vibration conversion toggle

Allows to change the new feature of AOSP 4.2, where all notification are
changed to vibrations on vibrate mode. Instead, allow the old behaviour
to silence sound notifications and to only play vibrations if desired.

Alle credits go to romanbb from AOKP, I just ported it.
Original AOKP-Commit:
https://github.com/AOKP/frameworks_base/commit/c1b2bb9b5d0c33e790973841bb2acaa5ea5d51fe

Change-Id: Id27dd2975d3383f6d7395a0ee995d7832e87ca66
framework: Update German translation

Before: http://goo.gl/1qlze
After:  http://goo.gl/oElpC

Patch Set 1:    * add missing quick setting translations
                  http://review.cyanogenmod.org/#/c/30327/

Patch Set 2:    * rename some strings

Patch Set 3:	* some cleanup

Patch Set 4:    * add missing quick setting translations
                  http://review.cyanogenmod.org/#/c/31184/

Patch Set 5:    * rebased

Change-Id: I3d45b431a0f8afbd802a26cf87e83a6dd0a0f081
Merge "framework: Update German translation" into cm-10.1
@hide new setting and move it to appropriate place.

Change-Id: I02b50de9ba5b4aeab38acf6f9225908a4079b05a
Fix coding style.

Change-Id: Ia3d84f0ed6174234e07b1a5faa244cd63b4f6b4c
Merge branch 'cm-10.1' into CM10.1

Conflicts:
	core/java/android/provider/Settings.java