merge r30310 from trunk to branch 2.7

bug 3165 fixed: template variable ACTIVATE_COMMENTS had been accidentally removed with Piwigo 2.6


git-svn-id: http://piwigo.org/svn/branches/2.7@30311 68402e56-0260-453c-a942-63ccdbb3a9ee

admin/user_list.php

@@ -86,6 +86,7 @@ $template->assign(
   array(
     'users' => $users,
     'all_users' => join(',', $user_ids),
+    'ACTIVATE_COMMENTS' => $conf['activate_comments'],
     'Double_Password' => $conf['double_password_type_in_admin']
     )
   );