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
