Version: 4.2.3
* Remove support for MWS
* Implement work-around for Amazon API not returning all SKUs to fix inventory sync
* Implement logging through WooCommerce logging
* Add URL to package tracking number for shipment status
* Patch to MAJOR UPDATE (see full details of version 4.0.0)
* Fix issue in passing # symbol to Amazon with temporary work-around
* Fix issue with SKUs containing + symbol with temporary work-around
* Fix BLANK_BOX feature reference per the SP API model
* Fix some issues with inventory sync not going past the first page of results
* Fix php notices and error handling when API errors are returned