New Update, read comment and UNINSTALL previous installations on your device

- Fixed unnecessary library and the bugs appearing when removing it
- Fixed bug that initially the default set language is not shown in the prefs
- Fixed Bug with nav drawer gone when screen rotated
- Added votes count to the menu model and the menulists (including database -> that's why you need to uninstall the app first, the database seems not to be able to insert new fields at runtime into an existing databse @Theodor: is this doable, will break any future updates with database changes...)
- Tapping an info window in the map now leads to that mensa