Mms: Update german translation

- Change translation of "delivered" label in "Report" window
- Make use of "..." vs Unicode char consistent (use Unicode)
- Add translation of "Add to calendar" message option

Change-Id: I6453e1ee7434b1f063cffd3f432f67ad62d664f4
Merge "Mms: Update german translation" into cm-10.1
Merge remote-tracking branch 'upstream/cm-10.1' into cm-10.1