This is a happy-new-year-openbsd edition, featuring op@ as Ded Moroz:
* new feature: ring a terminal bell when mentioned on public chat,
or when a private message is received.
* Implemented private chat nicknames history. See manpage for details.
* Fixed printing of current state upon Ctrl+T.
* Private chats are now sticky, allowing to paste multiple lines of text.
oicb is a minimalistic replacement for previously retired net/icb. oicb lacks
many (insecure) features, but offers one big advantage: screen is not blocked
while you're typing.
Initial input kn@; further testing, input and okay jturner@