Enable Bridge AutoRefresh by default.
Basic incoming and outgoing messages in bridge.

Checkpointing of handled messages is still missing.
More sensible naming for incoming/outgoing chans.
Ping servers every few seconds.
ircServer now dies on errors rather than retrying.

This prepares the stage for the bridge to be responsible,
so it can walk back the outgoing queue when appropriate.
Set net deadlines on every ping sent.