Set hostname for mesh install

src/freedombone

   echo "$DEFAULT_DOMAIN_NAME" > /etc/hostname
   hostname $DEFAULT_DOMAIN_NAME
 
-  if [[ $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
-      return
-  fi
-
   if grep -q "127.0.1.1" /etc/hosts; then
       sed -i "s/127.0.1.1.*/127.0.1.1       $DEFAULT_DOMAIN_NAME/g" /etc/hosts
   else