* portsentry should use pid-files(portsentry.tcp.pid/portsentry.udp.pid)
  (patch submitted upstream)
* make portsentry aware of SIGHUP to reread configuration files
* get rid of explicit db_stop in postinst
* debconf: ipchains || iptables, tcp || stcp || atcp
* update portsentry-* scripts to better support netmasks