ProjectDemo: allow dropping onto root item
ProjectDemo: allow dropping onto root item

git-svn-id: 86da47947f00264e7aa83577714cade36fc4532d@6546 7b3f36aa-e6db-49c1-8b4c-66eac1997e64

etoile/CoreObject,chris-armstrong/CoreObject,etoile/CoreObject,chris-armstrong/CoreObject,chris-armstrong/CoreObject,chris-armstrong/CoreObject,etoile/CoreObject,etoile/CoreObject