This fork of trackbar.pl is created because the original author didn't reply.

I added trackbar resizing after terminal size change, so I wanted to let
everyone benefit from my change and merge my code into the original version
(and have it on scripts.irssi.org). Since I couldn't make contact with the
original owner, I'm releasing my modifications here.

If somebody else has patches, please send a pull request or a diff. I'll
try to get this on scripts.irssi.org later.