Hi!

This patch adds the documentation that Brad Fisher <brad@info-link.net>
made time ago, you can get the original post from:

http://lists.netfilter.org/pipermail/netfilter-devel/2006-February/023286.html

This patch contains documentation that I did not have time to review in
deep yet. However, several developers has refered to this documentation
as a good kick-off to start developing applications for libnetfilter_queue.

I have push it to git. If you want to contribute it, just send a patch
on top of it. Thanks!

-- 
"Los honestos son inadaptados sociales" -- Les Luthiers