Removed :view permission revoke spec in spec/models/user_spec.rb
Removed :view permission revoke spec in media_resource_spec
Added spec to verify that manage grouppermission cannot be true

and removed an old one that used the now impossible state
Added checks that view and mange on MR is constantly false via migr.
Adjusted a spec to added migration
Added spec for edit/manage constraint on mr

removed not applicable test
Updated personas db to recent migration