Copy constructors for all abstract api classes api
Merge branch 'master' of https://github.com/faern/book-a-hobbit.git
error handling
error handling
RoomController changed copy method
Merge branch 'master' of https://github.com/faern/book-a-hobbit.git

Conflicts:
	se.chalmers.TDA593.Book-a-Hobbit/src/hobbit/api/ARoom.java
	se.chalmers.TDA593.Book-a-Hobbit/src/hobbit/api/ARoomBooking.java
	se.chalmers.TDA593.Book-a-Hobbit/src/hobbit/model/impl/RoomBookingImpl.java