Overview:

- Articles can be selected or marked seen based on:
    complete or partial contents of author name
    complete or partial contents of author's email address
    number of lines in article equal to 'n'
    number of lines in article greater than 'n'
    number of lines in article less than 'n' (non-zero)
    complete or partial contents of article subject
    complete or partial contents of message ID header
    partial contents of references header
- Above actions can be defined globally for all groups or on a group by
group basis.
- All selections above are case sensitive.  Sorry/you're welcome (as
appropriate).
- "Killed" articles are marked with "k" and highlighted with a lighter shade
of blue (default) than articles actually seen.
- <CR> in article list will find the first article selected in the list and
display it.
- chop the "Re: " out of the subject before comparing.  .


WinVN.INI file internals:
- Article action enabled by winvn.ini file setting:
      [Article List]
      EnableArticleAction=1

[G: alt.winsock]
SortOption=465
Action01=SALT 11
Action02=SAGT 100
Action03=SASC Netscape
Action04=SASC Trumpet

This will mark as 'seen' articles in alt.winsock that have less than 11
lines, more than 100 lines, or contain "Netscape" or "Trumpet" (case
sensitive) in the subject lines.  The complete list of filters (so far) is
at the top of WVAction.cpp.  You can also add global directives for all
newsgroups by adding the above to .ini file group "[N: news.ksc.nasa.gov]"
(or whatever your newsfeed is).


Future possibilities:
- Add support for presence of other headers (crossposted groups, ...)
- [Win32] Store info in registry instead of .ini file.
- Add expiry period on actions (most useful for killing threads).

