- improvement: long localized messages are in HTML files instead of $lang

array. This is the case of admin/help and about pages.

- deletion: of unused functions (ts_to_mysqldt, is_image, TN_exists,
  check_date_format, date_convert, get_category_directories,
  get_used_metadata_list, array_remove, pwg_write_debug,
  get_group_restrictions, get_all_group_restrictions, is_group_allowed,
  style_select, deprecated_getAttribute).

- new: many new contextual help pages to replace descriptions previously
  included in pages.

- modification: reorganisation of language files. Deletion of unused
  language keys, alphabetical sort. No faq.lang.php anymore (replaced by
  help.html). Only done for en_UK.iso-8859-1.


git-svn-id: http://piwigo.org/svn/trunk@862 68402e56-0260-453c-a942-63ccdbb3a9ee

admin/include/functions_metadata.php

@@ -221,28 +221,4 @@ SELECT id, path
   
   return $files;
 }
-
-// used_metadata string is displayed to inform admin which metadata will be
-// used from files for synchronization
-function get_used_metadata_list()
-{
-  global $conf;
-  
-  $used_metadata = array('filesize', 'width', 'height');
-
-  if ($conf['use_exif'])
-  {
-    array_push($used_metadata, 'date_creation');
-  }
-
-  if ($conf['use_iptc'])
-  {
-    foreach (array_keys($conf['use_iptc_mapping']) as $key)
-    {
-      array_push($used_metadata, $key);
-    }
-  }
-
-  return array_unique($used_metadata);
-}
 ?>