getNumberOfType in inventorymanager
Merge branch 'master' of https://github.com/faern/book-a-hobbit
Fixed some InventoryManager issues
Merge branch 'master' of github.com:faern/book-a-hobbit

Conflicts:
	se.chalmers.TDA593.Book-a-Hobbit/src/hobbit/model/impl/InventoryManagerImpl.java
Added methods to inventory manager interface
reimplemented getNumberOfType in inventoryManager
Made BookingComponent into class and added getters for all public interfaces
Merge branch 'master' of github.com:faern/book-a-hobbit
Made ApiFactory return a correct BookingComponent that now returns correct controllers
Merge branch 'master' into tests