HotelTest & BillTest working: Now working on proper casting.
Test
Thing
Merge branch 'bouke' of https://github.com/owah/Softwaresystemen.git
into bouke

Conflicts:
	src/ss/week3/hotel/PricedRoom.java
	src/ss/week3/test/BillTest.java
	src/ss/week3/test/HotelTest.java