Add theme commit to the completion file

src/freedombone

         echo "addPlugin('Qvitter');" >> /var/www/$MICROBLOG_DOMAIN_NAME/htdocs/config.php
     fi
 
+    if ! grep -q "GNU Social theme commit" $COMPLETION_FILE; then
+        echo "GNU Social theme commit:$GNUSOCIAL_THEME_COMMIT" >> $COMPLETION_FILE
+    fi
+
     chown -R www-data:www-data /var/www/$MICROBLOG_DOMAIN_NAME/htdocs
 
     echo 'install_gnu_social_theme' >> $COMPLETION_FILE