Covers tasks discussed on 02/02/2013

Covers tasks discussed on 02/02/2013

Fixes:

* Shipment desc => commodity desc / goods desc

* Commodity code/tarrif heading (to be added to commodity desc)

* Volumetric weight to shipment (metric)

* Sub-master bill number => way bill

* Required documents (certificates) (None, Eur1, Wine, SADC, Phyto Sanitary, Agricultural, Carnet, origin) shipment can have more than 1 cert. These must be added to the shipment as a list. required field

* Customs Entry Type (DP, WE, WH, XE, Other) required field

* ShipShape input. required field 

* Shipment statuses (Open, Delivered, Closed )

* Flag shipments with issues and add descriptions

* Add importers code to company customer and ID + tax ref number for individuals