fd patch to squid

Hello guys,

As you probably know, we have one RH specific patch to squid. It's for
dynamic configuration of filedescriptors number, via. squid.conf. I
reviewed it for the 2.6 branch, fixed some bugs (which comes with squid
  reconfiguration) so I think it's stable enough now.

If you find it useful, put it please to http://devel.squid-cache.org/ or
I can make place for it on http://people.redhat.com/stransky/squid/,
it's up to you.

Regards,

Martin