epoll on squid

I finally got all of the problems fixed with my epoll patch for
squid-3.0. Here is a fixed patch as well as all of the things you will
need to build it (aside from squid-3.0-DEVEL and linux kernel 2.5.49).
I tested this on a gentoo i686 build with gcc3.2, and it seems to work
fine on that as well.

Performance in my own tests show it doing much better relative to poll()
on the same box. Hard numbers are still forthcoming.

-- 
David Nicklay
Location: CNN Center - SE0811A
Office: 404-827-2698	Cell: 404-545-6218