upnp port for zeronet

src/freedombone

   iptables -A INPUT -i $WIFI_INTERFACE -p udp --dport $ZERONET_PORT -j ACCEPT
   iptables -A INPUT -i $WIFI_INTERFACE -p tcp --dport $ZERONET_PORT -j ACCEPT
   iptables -A INPUT -i $WIFI_INTERFACE -p udp --dport $TRACKER_PORT -j ACCEPT
+  iptables -A INPUT -i $WIFI_INTERFACE -p udp --dport 1900 -j ACCEPT
   save_firewall_settings
   echo 'configure_firewall_for_zeronet' >> $COMPLETION_FILE
 }

src/freedombone-client

   echo "    iptables -A INPUT -p tcp --dport $ZERONET_PORT -j ACCEPT" >> $batman_script
   echo "    iptables -A INPUT -p udp --dport $ZERONET_PORT -j ACCEPT" >> $batman_script
   echo "    iptables -A INPUT -p udp --dport $TRACKER_PORT -j ACCEPT" >> $batman_script
+  echo "    iptables -A INPUT -p udp --dport 1900 -j ACCEPT" >> $batman_script
   echo '' >> $batman_script
   echo '    if [ -f /bin/systemctl ]; then' >> $batman_script
   echo '        systemctl restart avahi-daemon' >> $batman_script
   echo "    iptables -D INPUT -p tcp --dport $ZERONET_PORT -j ACCEPT" >> $batman_script
   echo "    iptables -D INPUT -p udp --dport $ZERONET_PORT -j ACCEPT" >> $batman_script
   echo "    iptables -D INPUT -p udp --dport $TRACKER_PORT -j ACCEPT" >> $batman_script
+  echo "    iptables -D INPUT -p udp --dport 1900 -j ACCEPT" >> $batman_script
   echo '' >> $batman_script
   echo '    if [ -f /bin/systemctl ]; then' >> $batman_script
   echo '        systemctl restart network-manager' >> $batman_script