v4.0.0

Added

• API response headers are now accessible via response classes' getHeaders() method. (#33)
• The dataElements parameter for restricted data tokens can be passed to the getOrders, getOrder, and getOrderItems calls.
• Documentation for both of the above changes has been added to the README.

Changed

• Model\FbaInbound\FBAItem is now Model\FbaInbound\Item, to match Amazon's Swagger models.
• All upstream API schema changes have been integrated in the library as of the date of this release (9/26/2021).
• Legacy models from previous versions of the API have been purged.

Fixed

• $config is now a required parameter for *Api classes. (#97)
• Model\Catalog\ItemImage's variant attribute is no longer an enum, because Amazon doesn't supply the full range of possible image variant values. (#100)