This odoo module add delivery state on the sale order line. It is based
on the module sale_delivery_state, which adds the field at sale order
level.

Delivery state is computed based on qty_delivered field on sale order
line.

The state of the sale order line can be forced to fully delivered in
case some quantities were cancelled by the customer and you consider you
have nothing more to deliver.

Sale order lines can have products or services, as long as the field
qty_delivered is set, it will trigger the computation of delivery state.

This module also works with delivery.carrier fees that are added as a
sale order line. Thoses line are special as they will never be
considered delivered. Delivery fees lines are ignored in the computation
of the delivery state.
