Avoid noConflict(true)

flask_mongoengine doesn't package it's own jQuery. This .noConflict()
would take the current $ off the window, causing other jQuery calls to
break.

Another approach is used here:
MongoEngine#313

Author: tony

flask_mongoengine/templates/panels/mongo-panel.html

@@ -167,5 +167,5 @@ <h4>{{ title }}</h4>
         $(this).closest('table').find('tr.mongo-stack-trace-hide').toggle();
     });
 
-})(jQuery.noConflict(true));
+})(jQuery);
 </script>