libxt_set: new revision added

libipt_set renamed to libxt_set and the support for the forthcoming
ipset release added. I have tested backward (IPv4) and forward
compatibility (IPv4/IPv6):

ipset -N test iphash
ipset -A test test-address
iptables -N test-set
iptables -A test-set -j LOG --log-prefix "match "
iptables -A test-set -j DROP
iptables -A OUTPUT -m set --match-set test dst -j test-set
ping test-address
11 files changed