- images.file categories.permalink old_permalinks.permalink - become binary

- session security improvement: now the sessions are valid only for originating ip addr (with mask 255.255.0.0 to allow users behind load balancing proxies) -> stealing the session cookie is almost a non issue (with the exception of the 65536 machines in range)
- metadata sync from the sync button does not overwrite valid data with empty metadata
- other small fixes/enhancements:
 - added event get_category_image_orders
 - fix display issue with redirect.tpl (h1/h2 within h1)
 - fix known_script smarty function registration
 - query search form not submitted if q is empty
 - better admin css rules
 - some other minor changes (ws_core, rest_handler, functions_search...)

git-svn-id: http://piwigo.org/svn/trunk@2521 68402e56-0260-453c-a942-63ccdbb3a9ee

include/page_header.php

@@ -69,11 +69,10 @@ if ( !empty($page['meta_robots']) )
 
 // refresh
 if ( isset( $refresh ) and intval($refresh) >= 0
-    and isset( $url_link ) and isset( $redirect_msg ) )
+    and isset( $url_link ) )
 {
   $template->assign(
     array(
-      'REDIRECT_MSG' => $redirect_msg,
       'page_refresh' => array(
             'TIME' => $refresh,
             'U_REFRESH' => $url_link