Inventory: creating singles
Inventory: creating rooms
Made inventorymanager a singleton
Merge branches 'master', 'master' and 'master' of https://github.com/faern/book-a-hobbit
Made InventoryManagerImpl singleton in ModelFactory
AUnit & InventoryManager
Model: AUnit attributes
new code generated
new code
Merge branch 'master' of https://github.com/faern/book-a-hobbit.git
changed public to protected for getInstance
Merge branch 'master' of https://github.com/faern/book-a-hobbit
Merge branch 'master' into bookingManager