merge 3145-3146 from trunk

Last (I hope) paranoic optims ...
- move get_uysername and get_groupname from public to admin/functions.inc.php
- optim in index.php
- tags.tpl does not need smarty modifier included
- move func get_comment_post_key from functions_comment to functions (avoid extra inclusion every time on picture page)

git-svn-id: http://piwigo.org/svn/branches/2.0@3147 68402e56-0260-453c-a942-63ccdbb3a9ee

1 files changed, 1 insertions, 1 deletions

diff --git a/tags.php b/tags.php
index 09df7efb5..4e506f1a9 100644
--- a/tags.php
+++ b/tags.php
@@ -149,7 +149,7 @@ if ($page['display_mode'] == 'letters') {
   // flush last letter
   if (count($letter['tags']) > 0)
   {
-    $letter['CHANGE_COLUMN'] = false;
+    unset($letter['CHANGE_COLUMN']);
     $letter['TITLE'] = $current_letter;
     $template->append(
       'letters',