Feature Request : Groups

[andreas83]

I like to add a new feature: groups, with moderators, members and all the common stuff.

Proposal: DB Structure

CONTENTS
group_id

GROUPS
group_id
name
avatar
background 
description
visibility 

GROUP_MEMBERS
group_id
user_id
status= awaiting, confirmed

GROUP_MODERATORS
group_id
user_id
status= awaiting, confirmed

Feedback welcome!