move from trac's ticket#136

Zend_Service_Amazon_Item doesn't return valid information about Tracks node. I made a patch for revision 593.

Zend/Service/Amazon/Item.php

*** Item.php.org        2006-06-09 10:31:19.000000000 +0900
--- Item.php    2006-06-09 22:48:08.000000000 +0900
***************
*** 123,138 ****
          }

          $result = $xpath->query('./az:Tracks/az:Disc', $dom);
!         if ($result->length > 1) {
              foreach ($result as $disk) {
!                 foreach ($xpath->query('./*/text()', $disk) as $t) {
!                     $this->Tracks[$disk->getAttribute('number')] = (string) $t->data;
                  }
              }
-         } else if ($result->length == 1) {
-             foreach ($xpath->query('./*/text()', $result->item(0)) as $t) {
-                 $this->Tracks[] = (string) $t->firstChild->data;
-             }
          }

          $result = $xpath->query('./az:Offers', $dom);
--- 123,134 ----
          }

          $result = $xpath->query('./az:Tracks/az:Disc', $dom);
!         if ($result->length) {
              foreach ($result as $disk) {
!                 foreach ($xpath->query('./az:Track', $disk) as $t) {
!                     $this->Tracks[$disk->getAttribute('Number')][$t->getAttribute('Number')] = (string) $t->firstChild->data;
                  }
              }
          }

          $result = $xpath->query('./az:Offers', $dom);