URL links appear in mail/web templates

| action | possiblly invoked by GET | uses confirm_action() | bug #527 |
| ------------------------------- | --- | --- | ------------ |
| `rss/active_lists`              | Yes |     |              |
| `add`                           |     | Yes |              |
| `add_frommod`                   |     | Yes |              |
| `admin`                         | Yes |     |              |
| `arc`                           | Yes | Yes | **Affected** |
| `arc_delete`                    |     | Yes |              |
| `arc_manage`                    | Yes |     |              |
| `arcsearch_id`                  | Yes | Yes | **Affected** |
| `auth`                          | Yes | Yes | **Affected** |
| `auth_add`                      |     | Yes |              |
| `auth_del`                      |     | Yes |              |
| `blacklist`                     | Yes |     |              |
| `close_list`                    |     | Yes |              |
| `compose_mail`                  | Yes |     |              |
| `copy_template`                 | Yes |     |              |
| `create_automatic_list_request` | Yes |     |              |
| `create_list_request`           | Yes |     |              |
| `d_admin`                       |     | Yes |              |
| `d_control`                     | Yes |     |              |
| `d_delete`                      | Yes | Yes | **Affected** |
| `d_editfile`                    | Yes |     |              |
| `d_properties`                  | Yes |     |              |
| `d_read`                        | Yes |     |              |
| `decl_add`                      |     | Yes |              |
| `decl_del`                      |     | Yes |              |
| `del`                           |     | Yes |              |
| `distribute`                    |     | Yes |              |
| `docindex`                      | Yes |     |              |
| `dump_scenario`                 | Yes |     |              |
| `ajax/edit`                     | Yes |     |              |
| `edit_config`                   | Yes |     |              |
| `edit_list_request`             | Yes |     |              |
| `edit_template`                 | Yes |     |              |
| `editfile`                      | Yes |     |              |
| `editsubscriber`                | Yes |     |              |
| `export_member`                 | Yes |     |              |
| `firstpasswd`                   | Yes |     |              |
| `get_closed_lists`              | Yes |     |              |
| `get_inactive_lists`            | Yes |     |              |
| `get_latest_lists`              | Yes |     |              |
| `get_pending_lists`             | Yes |     |              |
| `help`                          | Yes |     |              |
| `nomenu/help`                   | Yes |     |              |
| `home`                          | Yes |     |              |
| `import`                        | Yes | ~~Yes~~ not yet implemented |  |
| `including_lists`               | Yes |     |              |
| `info`                          | Yes |     |              |
| `rss/latest_arc`                | Yes |     |              |
| `rss/latest_d_read`             | Yes |     |              |
| `rss/latest_lists`              | Yes |     |              |
| `lists`                         | Yes |     |              |
| `lists_categories`              | Yes |     |              |
| `load_cert`                     | Yes |     |              |
| `ls_templates`                  | Yes |     |              |
| `modindex`                      | Yes |     |              |
| `move_list`                     |     | Yes |              |
| `move_user`                     |     | Yes |              |
| `my`                            | Yes |     |              |
| `open_list`                     |     | Yes |              |
| `pref`                          | Yes |     |              |
| `purge_list`                    |     | Yes |              |
| `renewpasswd`                   | Yes |     |              |
| `request_topic`                 | Yes |     |              |
| `remind`                        |     | Yes |              |
| `remove_arc`                    |     | Yes |              |
| `remove_template`               |     | Yes |              |
| `review`                        | Yes |     |              |
| `reviewbouncing`                | Yes |     |              |
| `rss_request`                   | Yes |     |              |
| `rt_delete`                     | Yes | Yes | **Affected** |
| `rt_edit`                       | Yes |     |              |
| `search_list_request`           | Yes |     |              |
| `serveradmin`                   | Yes |     |              |
| `serveradmin/archives`          | Yes |     |              |
| `serveradmin/families`          | Yes |     |              |
| `serveradmin/logs`              | Yes |     |              |
| `serveradmin/m_lists`           | Yes |     |              |
| `serveradmin/templates`         | Yes |     |              |
| `serveradmin/tracker`           | Yes |     |              |
| `serveradmin/translation`       | Yes |     |              |
| `serveradmin/users`             | Yes |     |              |
| `serveradmin/vhosts`            | Yes |     |              |
| `set_pending_list_request`      | Yes |     |              |
| `show_exclude`                  | Yes |     |              |
| `sigindex`                      | Yes |     |              |
| `signoff`                       | Yes | Yes | **Affected** |
| `skinsedit`                     | Yes |     |              |
| `sso_login`                     | Yes |     |              |
| `stats`                         | Yes |     |              |
| `subindex`                      | Yes |     |              |
| `suboptions`                    | Yes |     |              |
| `subscribe`                     | Yes | Yes | **Not affected**. Initially empty form is shown |
| `ticket`                        | Yes |     |              |
| `tracking`                      | Yes |     |              |
| `ajax/viewbounce`               | Yes |     |              |
| `viewlogs`                      | Yes |     |              |
| `ajax/viewmod`                  | Yes |     |              |

Usage of URL links is described in documentation

| action | invoked by GET | uses confirm_action() | bug #527 |
| ------------------------------- | --- | --- | ------------ |
| `auto_signoff`                  | Yes | Yes | **Affected** |
| `family_signoff_request`        | Yes |     |              |