fix delivery of skills from missions when no in inventory.
Allow "get" to cascade to containers in location.
Start putting support together for "relinquish" to deliver to container in location if player is not carrying a container. (expose locationInventory and pass to "relinquish").
Match up relinquish signatures between creature and artefact.
fix calls to "relinquish" after adding extra location inventory parameter.
Fix failing tests on change of wording.
Fix issue #111 destroying a container now returns any contents that don't need a container to either the player inventory or location with an apprpriate message