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_default.inc.php

@@ -126,7 +126,7 @@ foreach ($pictures as $row)
       }
       case 'search' :
       {
-        $name = replace_search($name, $_GET['search']);
+        $name = replace_search($name, $page['search']);
         break;
       }
     }