- Add new flood-resistant KBucket trim policy
   - Limit received MsgID size

   - Use extended I2CP options for datagrams
   - Fix timeout for sent datagrams
   - Reduce token timeout
   - Check token age before use
   - Limit incoming token size

- Show totals line even if only one torrent

   - Adjust DHT timeouts
   - Add max peers per-torrent in tracker
   - Remove duplicate clean task for nodes
   - Fix another DHT warning message

   - Fix bug preventing completion announcement, broken in 0.9.1
   - Fix setting short retry time after initial announce failure
   - Fix DHT announce and getPeers
   - Fix DHT warning message
   - log tweaks

             Log infohashes in hex
             Don't write out nodes if we don't have any

   - Remove static SnarkManager instance
   - Allow DHT-only torrents
   - DHT debugging

- Protect against null DHT races
- Add message about restarting tunnel when DHT config changes
- Add DHT size to table totals

This is required in order to get the theme config keys of the various apps into
themes.config; this way, the routerconsole requires no knowledge of what apps
support universal theming, and can just blanket apply themes to all known keys.

FIXME: ensure that _theme is only read from the config file once per page load.

Directory column could do with a different icon.

The header icons are self-explanatory (but tooltip also has header text); the
status text is available from the tooltip.