- elements batch management : element_set page becomes the frontend to

element_set_global and element_set_unit, infos_images (after a long time
  of use) become deprecated : the more powerful element_set is used
  instead. Consequently, batch management concerns caddie but also "normal
  categories".

- refactoring code in admin.php to include the sub-file (clearer)

- caddie : function fill_caddie replaces the code in category.php and can be
  used in admin/element_set.php

- caddie : caddie table is added in delete_elements function


git-svn-id: http://piwigo.org/svn/trunk@764 68402e56-0260-453c-a942-63ccdbb3a9ee

admin/cat_list.php

@@ -451,7 +451,7 @@ foreach ($categories as $category)
       'U_CAT_DELETE'=>add_session_id($self_url.'&delete='.$category['id']),
       
       'U_INFO_IMG'
-      => add_session_id($base_url.'infos_images&cat_id='.$category['id'])
+      => add_session_id($base_url.'element_set&cat='.$category['id'])
       ));
   
   if (!empty($category['dir']))