Merge pull request #3 from sebastiansommer/master

Added get method for retrieving shipments

Author: stephangroen

src/Client.php

@@ -249,6 +249,12 @@ public function createShipment($idpicklist, $params)
         return $result;
     }
 
+    public function getShipments($idpicklist)
+    {
+        $result = $this->sendRequest('/picklists/' . $idpicklist . '/shipments');
+        return $result;
+    }
+
     /*
      * Suppliers
      */