This patch fixes a few minor details of the E1.

The changelog in detail:

• Bugfix: A playing announcement could not be cancelled in IBIS with "Lösch." button.
  
• The destination plate for "Bahnhof Favoriten" was added
  
• The destination plate for "Hintere Zollamtsstraße" (Radetzkystraße) was added
  
• The destination plate for "Schottenring U" was added