Log Message:
Update clamav to 0.60.  Note the new home is sourceforge.

Also fix pkg/22714, clamav not building, this was due to it rerunning
configure due to dependancy updates, which built a new libtool, replacing
the one we had given it from pkgsrc.

The fix is to run autoconf and automake on the patches, I would have done
diff's post autoconf/automake, but the diffs are much bigger.

Known issue, if you run fetchclam to update the databases you'll find that
pkg_install won't remove the db files as the MD5 checksum has changed, I
may move the db files into etc/clamav and copy them in, then fetchclam can
update as needed.

However I thought that given the current spate of viruses hitting people
they maybe wanting the latest version.