Squid-2.1PATCH2 + Henrik Nordstrom's patches

This is a patch against Squid2.1PATCH2 that is a combo patch that includes
the following patches from http://hem.passagen.se/hno/squid/ :

clientHandleIMSReply memory leak
Fix for a filedescriptor leak on non-anonymous FTP
Async-IO lost active files on shutdown
Some more async-io fixes
proxy_auth ignored user list
Client side Cache-Control: no-cache
Fix client-side Cache-control: max-age
FTP // path
Handle empty dir;type=d directories
Assertion failure when loading large icons
Show FTP connection refused
Don't cache "expired" objects
Enable poll on Linux 2.2

Here is how you apply it:

Grab virgin Squid2.1PATCH2 and this attached patch

tar zxvf squid-2.1.PATCH2-src.tar.gz
cd squid-2.1.PATCH2
gunzip -c ../squid2.1-PATCH2-hn1.patch.gz | patch -p1

And then configure and make away