Join channels after connect

[Arkan Emberwalker]

Currently there's a delay placed on channel joins within the adapters; it tends to be quite hit or miss, even with a 15 second delay. Joining after an appropriate post connect callback might be a better way forward.

[hamhut1066 NA]

I've been playing around with the protocol, and it seems that one can only join channels after the first pong. One could probably write something that would solve this...

[Kit Barnes]

This feeds into generally adding sensible hooks in various places. One obvious one would be a "ready for commands" hook, into which one could register callbacks. We should have a discussion about what other hooks we want.

[Kit Barnes]

This is now an issue in pircel rather than possel, and over there I've been using the rpl_welcome IRC message as the "ready" callback. I've also started work on providing friendlier callbacks via the model module, though they probably want to go elsewhere tbh.