Better handling of toxcore logging

src/freedombone-app-tox

         mesh_tox_avahi
         mesh_tox_client
     else
-        ${PROJECT_NAME}-logging on
-        install_tox_node
+        avoid_tor_restart=
         if [ -f $IMAGE_PASSWORD_FILE ]; then
             if [[ $ONION_ONLY != 'no' ]]; then
-                ${PROJECT_NAME}-logging off --onion
-            else
-                ${PROJECT_NAME}-logging off
+                avoid_tor_restart=1
             fi
+        fi
+
+        if [ $avoid_tor_restart ]; then
+            ${PROJECT_NAME}-logging on --onion
+        else
+            ${PROJECT_NAME}-logging on
+        fi
+
+        install_tox_node
+
+        if [ $avoid_tor_restart ]; then
+            ${PROJECT_NAME}-logging off --onion
         else
             ${PROJECT_NAME}-logging off
         fi
+
         tox_avahi
         install_tox_client
     fi