Doesn't implement SimplePresence
Submitted by Will Thompson @wjt
Assigned to Jonathon Jongsma @jjongsma
Description
Idle doesn't implement any kind of presence interface.
While (I believe) there's no standard way to discover others' presences without polling, we should at least implement the interface so that a user can set themself away. A refinement would be to poll for users' presence following some heuristic; people with whom we have an open channel, members of a channel we're in with less than n members, people a client has explicitly asked about, maybe?