spree/spree — pull request #5540 by HoyaBoya (2014-10-28 15:44:50+00:00)
Title: Allow for shipment adjustments to be viewed from API

If there are adjustments on a shipment i.e. Free Shipping, then it would be nice to see it via the API. This feels pretty reasonable since line items are showing their adjustments. Shipping should be the same way, me thinks.