Fixes to the model changing of date to calendar in multiple places
Merge branch 'dev' of
ssh://git@github.com/ModelDrivenMiddleEarth/ModelDrivenHotel.git into
dev

Conflicts:
	se.chalmers.mdsd.2014.group9/src/Classes/ClassDiagram/impl/AdminUsageImpl.java
	se.chalmers.mdsd.2014.group9/src/Classes/ClassDiagram/impl/CustomerUsageImpl.java
Error fixes
Implemented cancel hotelstay and its test
Fixed dates in seed
Merge branch 'dev' of ssh://git@github.com/ModelDrivenMiddleEarth/ModelDrivenHotel.git into dev
Moved isObjectAvailable to admininterface instead