READ : Allow user to view this Issue
CREATE : Allow user to create new resource below this Issue
UPDATE : Allow user to edit this Issue
DELETE : Allow user to delete this Issue
POST COMMENT : Allow user to post new comments and add new files in this Issue

Resource has permissions :	READ	CREATE	UPDATE	DELETE	POST COMMENT	Action
ls://dev.artenum.com/projects/abt/managers						Edit -  Delete -  (recursive)
ls://dev.artenum.com/projects/abt/observers						Edit -  Delete -  (recursive)
ls://dev.artenum.com/groups/manager						Edit -  Delete -  (recursive)
ls://dev.artenum.com/projects/abt/developers						Edit -  Delete -  (recursive)
ls://dev.artenum.com/groups/developers						Edit -  Delete -  (recursive)

    (owner has all permissions)