URL rewriting: capable of fully working with urls without ?

URL rewriting: works with image file instead of image id (change
make_picture_url to generate urls with file name instead of image id)

URL rewriting: completely works with category/best_rated and
picture/best_rated/534 (change 'category.php?' to 'category' in make_index_url
and 'picture.php?' to 'picture' in make_picture_url to see it)

fix: picture category display in upper bar

fix: function rate_picture variables and use of the new user type

fix: caddie icon appears now on category page

fix: admin element_set sql query was using storage_category_id column
(column has moved to #image_categories)

fix: replaced some old $_GET[xxx] with $page[xxx]

fix: pictures have metadata url (use ? parameter - might change later)

git-svn-id: http://piwigo.org/svn/trunk@1092 68402e56-0260-453c-a942-63ccdbb3a9ee

include/category_recent_cats.inc.php

@@ -28,7 +28,7 @@
 /**
  * This file is included by the main page to show thumbnails for recent_cats
  * category
- * 
+ *
  */
 
 // retrieving categories recently update, ie containing pictures added
@@ -71,7 +71,7 @@ while ( $row = mysql_fetch_array( $result ) )
       'IMAGE'       => get_thumbnail_src($row['path'], @$row['tn_ext']),
       'IMAGE_ALT'   => $row['file'],
       'IMAGE_TITLE' => $lang['hint_category'],
-      
+
       'U_IMG_LINK'  => make_index_url(
         array(
           'category' => $row['category_id'],
@@ -83,10 +83,10 @@ while ( $row = mysql_fetch_array( $result ) )
   $template->assign_block_vars(
     'thumbnails.line.thumbnail.category_name',
     array(
-      'NAME' => get_cat_display_name_cache($row['uppercats'], '', false),
+      'NAME' => get_cat_display_name_cache($row['uppercats'], null, false),
       )
     );
-  
+
   // create a new line ?
   if (++$row_number == $user['nb_image_line'])
   {