ArkyMapsDal, ArkyMapsDatabase, ArkyMapsDOmainModel, ArkyMapsService:
  - Added phone user creation, modification and deletion in dal.
  - Renamed location to position.
ArkyMapsService:
  - Service extended with phone user CRUD operations.
ArkyMapsClient, ArkyMapsPhoneSimulator, ArkyMapsService:
  - Phone user administration implemented in service and client.
All:
  - Merged implement-phone-user-administration back into dev.
    - Implemented phone user administration.