In order to circumvent the usage quota of Google Maps
the map provider was changed to be MapBox now. Additionally
the maps implementation was refactored to be better extendable
in future.
In order to have AA work properly also on production devices
the app needs to be installed from a trusted install source,
which is the Google PlayStore. So the app is now rolled out via
GooglePlay for Beta-Testers.
Now the requested frequency and the priority of location updates can be
selected in a newly integrated SettingsActivity which can be extended
for future use.
