POST Booking
Merge branch 'impl2' into PresentationBookingController
Checkpoint - adding messages and tests for presentation layer.
Merge branch 'impl2' into PresentationBookingController

Conflicts:
	src/main/java/com/bodkink/hotel/business/logic/impl/BillingManagementImpl.java
Finished first iteration in functional tests for booking.
revert changes....
Merge branch 'PresentationBookingController' into impl2

Conflicts:
	src/main/java/com/bodkink/hotel/business/logic/impl/BillingManagementImpl.java
	src/main/java/com/bodkink/hotel/persistence/IRoomReservationService.java
	src/main/java/com/bodkink/hotel/persistence/service/RoomReservationServiceImpl.java
Fix tests and merge presentation layer for booking down to impl2.