Apollo: Update German translation

Patch Set 1:   * make strings more consistens to
                 Google Play Music and other well known music apps

Patch Set 2:   * revert some changes

Change-Id: I8bdc298deb2261a9e5f2a65465bdbccdbaf0d1b9
Merge remote-tracking branch 'cyanogen/cm-10.1' into cm-10.1