sakaiproject/Hilary — pull request #502 by simong (2013-05-15 16:58:44+00:00)
Title: Activity issues

- We should add the tenant alias and displayname to the actors, objects and targets in the activity feed, just like we do for entity profiles and search results.
- For the `group-add-member` activity, we want the object to be the group and the target to be the people that have been added to the group. This is in line with how content sharing is done.