reflecting X-NOFFLE-Status in gnus *Summary* buffer

[Dan Jacobson]

It seems us noffle gnus users do indeed have a chance to know if a
message has been downloaded or not when merely looking at gnus'
*Summary* buffer.

The X-NOFFLE-Status header could be examined by gnus, and then some
change to the article's summary line could be made, much like the
number of lines is extracted and put on the article's summary line.

Within moments of my posting, the formula will surely be posted.

If one could tell which articles haven't been downloaded (due to
one's noffle filters, etc.) in the summary buffer, one could avoid
requesting them if one didn't want to read them that bad, etc.

I hate that land mine feeling: I thought you were on disk already,
that's why I bothered to try to read you. But you aren't, and now I'm
making a special request. Blast. Now I must _try_ to clean up the mess
with http://jidanni.org/comp/ppp/noffle-wipe-last-request