fix queries for single values

templates/show_shop.html

@@ -51,7 +51,7 @@
   </dl></form>
   <form id="disp_delete" class=hidden action="{{ url_for('remove_shop') }}" method=post class=add-entry>
       <dl>Delete shop permanently. Can not be restored.</dl>
-    <dl><input type=hidden name=shopid value={{ shopid }}><input class=submit type=submit value=Remove onclick="return confirm('Do you really want to remove shop {{ shop }}?');">
+    <dl><input type=hidden name=shopid value={{ shopid }}><input class=submit type=submit value=Delete onclick="return confirm('Do you really want to remove shop {{ shop }}?');">
   </dl></form>
 
 {% endblock %}