avahi service for mesh client

src/freedombone-meshweb

 ZERONET_DEFAULT_BLOG_TAGLINE="Blogging on the Mesh"
 ZERONET_DEFAULT_FORUM_TAGLINE="A decentralized discussion group"
 
+IPFS_PORT=4001
+
 function install_ipfs {
   if [ ! -f /home/$MY_USERNAME/go/bin/ipfs ]; then
       if [ ! -d /usr/local/go ]; then
           sudo chown $MY_USERNAME:$MY_USERNAME /dev/fuse
       fi
   fi
+
+  IPFS_PEER_ID=$(ipfs id | grep '\"ID\":' | awk -F '\"' '{print $4}')
+  if [ ${#IPFS_PEER_ID} -lt 10 ]; then
+      echo 'Invalid IPFS peer ID'
+      echo "$IPFS_PEER_ID"
+      exit 74782
+  fi
+
+  # Add an avahi service
+  echo '<?xml version="1.0" standalone="no"?><!--*-nxml-*-->' > /tmp/ipfs.service
+  echo '<!DOCTYPE service-group SYSTEM "avahi-service.dtd">' >> /tmp/ipfs.service
+  echo '<service-group>' >> /tmp/ipfs.service
+  echo '  <name replace-wildcards="yes">%h IPFS</name>' >> /tmp/ipfs.service
+  echo '  <service>' >> /tmp/ipfs.service
+  echo '    <type>_ipfs._tcp</type>' >> /tmp/ipfs.service
+  echo "    <port>$IPFS_PORT</port>" >> /tmp/ipfs.service
+  echo "    <txt-record>$IPFS_PEER_ID</txt-record>" >> /tmp/ipfs.service
+  echo '  </service>' >> /tmp/ipfs.service
+  echo '</service-group>' >> /tmp/ipfs.service
+  sudo cp /tmp/ipfs.service /etc/avahi/services/ipfs.service
 }
 
 function install_zeronet_blog {