DHT announce after a long period of inactivity

[mcaspi]

In earlier versions there used to be a DHT announce when a torrent became active after a long period of inactivity but this doesn't happen in recent versions. While this decision to announce based on a timer is reasonable in big swarms, in small swarms I don't see a reason why not to announce immediately when a torrent becomes active. Please trigger a DHT announce in small swarm torrents after a long period of inactivity.