Please add more forum 'recent-activity' entries for group actions

[RobinHood]

I use the recent-activity stream as a live feed on my home page, so additional entries for actions users take in the group help to make the forum look more active and bring attention to activity in the groups part of the website.

Please add entries for:

• New event created in a group
  • 'Member has created an event in the group group name'
  • 'Member1 has commented on the event Event Name in the group group name'
  • 'Member1 likes member2's event Event Name in the group group name'

• Starts a thread on a group wall
  • 'Member has posted on the wall in the group group name'
  • 'Member has attached a file to the wall in the group group name'

• Replies to and likes wall comments
  • 'Member has replied to a wall post in the group group name'
  • 'Member1 likes member2's comment on the wall in the group group name'

• A member joins a group - for public and closed, not secret of course, because it's a secret
  • 'Member has joined the group group name'