Escape gradebook name in gradebook_list.php to avoid XSS - refs #2746

Author: ywarnier

main/template/default/admin/gradebook_list.tpl

@@ -15,7 +15,7 @@
         {% for item in gradebook_list %}
             <tr>
                 <td>
-                    {{ item.name }}
+                    {{ item.name | e }}
                 </td>
                 <td>
                     {{ item.courseCode }}