Only install avahi on mesh startup

src/freedombone-client

 
   echo '#!/bin/sh' > $babel_script
   echo '' >> $babel_script
-  echo '# install avahi' >> $babel_script
-  echo 'apt-get -y install avahi-utils avahi-autoipd' >> $babel_script
-  echo 'sed -i "s|#host-name=.*|host-name=$(hostname)|g" /etc/avahi/avahi-daemon.conf' >> $babel_script
-  echo 'sed -i "s|host-name=.*|host-name=$(hostname)|g" /etc/avahi/avahi-daemon.conf' >> $babel_script
-  echo 'if [ -f /bin/systemctl ]; then' >> $babel_script
-  echo '    systemctl restart avahi-daemon' >> $babel_script
-  echo 'else' >> $babel_script
-  echo '    service avahi-daemon restart' >> $babel_script
+  echo 'if [[ $1 == "start" ]]; then' >> $babel_script
+  echo '    # install avahi' >> $babel_script
+  echo '    apt-get -y install avahi-utils avahi-autoipd' >> $babel_script
+  echo '    sed -i "s|#host-name=.*|host-name=$(hostname)|g" /etc/avahi/avahi-daemon.conf' >> $babel_script
+  echo '    sed -i "s|host-name=.*|host-name=$(hostname)|g" /etc/avahi/avahi-daemon.conf' >> $babel_script
+  echo '    if [ -f /bin/systemctl ]; then' >> $babel_script
+  echo '        systemctl restart avahi-daemon' >> $babel_script
+  echo '    else' >> $babel_script
+  echo '        service avahi-daemon restart' >> $babel_script
+  echo '    fi' >> $babel_script
   echo 'fi' >> $babel_script
   echo '' >> $babel_script
   echo 'IFACE=wlan0' >> $babel_script