READ : Allow user to view this Subversion
CREATE : Allow user to create new resource below this Subversion
UPDATE : Allow user to edit this Subversion
DELETE : Allow user to delete this Subversion

Resource has permissions :	READ	CREATE	UPDATE	DELETE	Action
ls://dev.artenum.com/projects/cassandra/member					Edit -  Delete -  (recursive)
ls://dev.artenum.com/projects/cassandra/managers					Edit -  Delete -  (recursive)
ls://dev.artenum.com/projects/cassandra/readers					Edit -  Delete -  (recursive)
ls://dev.artenum.com/groups/developers					Edit -  Delete -  (recursive)

    (owner has all permissions)