This reverts commit e3e2b36ecf6a1340f1dc2542233bafe0862447fa.
Apparently racing *all* of the connections is not something you should
do, and I can't be bothered with all the extra logic to do this
"correctly" according to RFC 8305. Provide an API, you cowards.
What I did want to do was give IPv6 any chance at all of being used, but
I'm just going to leave that up to the order getaddrinfo returns. It's
someone else's fault.
Tags are now permanently assigned (and I'm betting on never needing more
than 256 of them) and the UI maps tags to a linked list of views for
easy reordering and removal. Currently, views can only be added. Views
don't have a topic window until they need one. All UI code wants to be
functional reactive.
Beeping is temporarily removed until message priorities (status,
message, ping) can be added to the UI. At that point spawning
notify-send should also be possible. Priorities will also help with
unnecessary markers, which will not appear for status messages.
The tab system is now used to send QUIT and NICK messages to all the
relevant tags. Verbose output now goes to its own tag, and sending to
it sends raw IRC.
IRC colors are now listed in chat.h and handler functions for numeric
replies have real names. The color algorithm now uses a real hash
function for hopefully better results. QUIT, PART and KICK messages are
scanned for URLs.
