Enable ipv6 when running tox node

src/freedombone

       exit 7359
   fi
   cp $INSTALL_DIR/toxcore/other/bootstrap_daemon/tox-bootstrapd.service /etc/systemd/system/
+
+  enable_ipv6
+
   systemctl daemon-reload
   systemctl enable tox-bootstrapd.service
   systemctl start tox-bootstrapd.service