Install a web server on mesh clients for the zeronet tracker

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 tcp --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
 }
 
 function install_web_server {
-  if [[ $SYSTEM_TYPE == "$VARIANT_CHAT" || $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
+  if [[ $SYSTEM_TYPE == "$VARIANT_CHAT" ]]; then
       return
   fi
   if grep -Fxq "install_web_server" $COMPLETION_FILE; then

src/freedombone-meshweb

 ZERONET_URL=http://127.0.0.1:43110
 TRACKER_PORT=6969
 
+function install_web_server {
+    if [ -d /etc/nginx ]; then
+        return
+    fi
+
+    sudo apt-get -y remove --purge apache2
+    if [ -d /etc/apache2 ]; then
+        sudo rm -rf /etc/apache2
+    fi
+    # install nginx
+    sudo apt-get -y install nginx
+
+    if [ ! -d /etc/nginx ]; then
+        echo 'Unable to install web server'
+        exit 51
+    fi
+}
+
 function install_zeronet {
   if [ -d $ZERONET_DIR ]; then
       return
 
 if [[ $SERVER_INSTALLATION == "no" ]]; then
     if [ ! -f /tmp/meshtype ]; then
+        install_web_server
         install_zeronet
         sudo batman start
         if [ ! "$?" = "0" ]; then
 
 existing_bttrack=$(ps aux | grep bttrack | wc -l)
 if [ $existing_bttrack -lt "2" ]; then
-	if [ ! -d ~/.bttrack ]; then
-		mkdir ~/.bttrack
-	fi
+    if [ ! -d ~/.bttrack ]; then
+        mkdir ~/.bttrack
+    fi
     bttrack --port ${TRACKER_PORT} --dfile ~/.bttrack/dstate --logfile ~/.bttrack/tracker.log --nat_check 0 --scrape_allowed full --ipv6_enabled 0 &
 fi