- in picture.php, $user['maxwidth'] and $user['maxheight'] can be unset if

NULL in database

- new table user_forbidden {user_id,need_update,forbidden_categories} and
  deletion of field users.forbidden_categories

- new function calculate_permissions to update table user_forbidden when
  needed

- simplification of include/user.inc.php

- in footer of each page, use "-" instead of "::" to separate page
  information


git-svn-id: http://piwigo.org/svn/trunk@648 68402e56-0260-453c-a942-63ccdbb3a9ee

include/constants.php

@@ -57,4 +57,5 @@ define('USERS_TABLE', $table_prefix.'users');
 define('WAITING_TABLE', $table_prefix.'waiting');
 define('IMAGE_METADATA_TABLE', $table_prefix.'image_metadata');
 define('RATE_TABLE', $table_prefix.'rate');
+define('USER_FORBIDDEN_TABLE', $table_prefix.'user_forbidden');
 ?>