* Change check for returning customers to check customer_id
* Count distinct returning and new customers in totals
* Fix priority action misplacement and order date timestamp
* Change expected num returning/new customers to fix failing tests
Previously these included references to number of returning vs new orders. Update to refer to the newly updated customer count.
* Use new get_customer_id_by_user_id() to get customer ID
* Fix 0 returning customers expectation
* Move returning customer function to order stats data store
* Sync order stats on order delete
* Change date compare for is_returning_customer
* Add test case for returning customer order
* Add references to instead of 2
* Rename orders controllers and data store to order stats
* Add orders data store and controller
* Add coupon, product, and status filters
* Add customer type query filter
* Add extended info for products and categories
* Bump API namespace to v4
* Add missing schema properties
* Set default customer_type and extended_info params
* Add orders endpoint tests
* Only use one JOIN if both excluded and included queries are used
* Optimize query calls to get product and category data
* Split product and category fetch and limit to product_cat taxonomy
Peter Fabian
Joshua T Flowers