Add shipments_id Shipment result class relationship.
Add Shipment, ShipmentCarrier, ShipmentMethod, ShipmentRate result classes.
Add Shipment, ShipmentCarrier, ShipmentMethod, ShipmentRate result classes to MANIFEST.
Add shipment test checkpoint.
Fix Zone belongs_to relationship
Complete test for example shipment.
Add shipment.t to MANIFEST.
Add ShipmentDestination to result and MANIFEST.
Fix typo in POD for shipment_destinations_id.
Merge pull request #57 from interchange/features/shipments

Add shipment result classes.