- add additional logic to visible_to_user, for groups and their objects
- cleans up some queries in Group view
NOTE: I can't work out how to make group lists only visible
to users who should be able to see them, on user group listings.
They still can't access the actual group, but can see it on
user pages. This is potentialy problematic.
- display groups on user pages when not the logged in user
- restrict visibility of groups on user pages and group pages themselves according to privacy settings
Hugh Rundle