(Issue 730) Use standard resource propagation with groups. Additionally propagate to managers of object and target in activity
Improve docs
Merge branch 'issue-730' of https://github.com/mrvisser/Hilary into issue-730
Fix issue with groups being routed to unauthorized streams when group is the object
Merge branch 'master' into issue-730
Merge branch 'issue-730' of https://github.com/mrvisser/Hilary into issue-730
Follow up on activity feed privacy issue