* New: Support "backorder" as a possible value for "Availability"
* New: Support different Availability values for in-stock/backorder/out of stock products
* New: Support "yesterday" and "week" as review feed generation options
* New: Support currency choices for supported extensions when building feed URLs
* Change: Availability is now mandatory
* Change: Improved debug logging for support purposes
* Change: Bundle latest version of action scheduler. Provides performance improvements for feed item cache
* Fix: Resolve issue where feed item filters not invoked when generating structured data
