got a request for the article cache. Not sure if it's easily
possible, but I'm going to put it out anyway..
Sometimes I'll queue up a bunch of large binary downloads, and then
go to read other groups (some of them image/binary). In doing this,
I'll also queue up a number of things to download/read, but often the
cache will get wiped out by my big download before I have a chance to
read the articles I wanted to, and I'll have to wait for them to re-
download.
It'd be really cool if the cache could prioritize what it deletes and
NOT delete things pertaining to the current "open" group if they were
selected to be read