Created a new class CabinDatabaseController

Also added a new method to DatabaseController to get multiple rows from
the Database.
Added more methods to DatabaseControllers

Added methods in DatabaseController for getting complete rows and
updated the CabinDatabaseController with getter-methods.
Merge pull request #2 from karlpa/Haakon

Haakon
Mergin changes made by Herman into master
Refactored cabin class and created rapport class
Fixed typo