* args is not used any more - remove todo
* Added test for attributes
* wc_get_price_excluding_tax usage
* parent usage
* Fix rating counts
* Test fixes
* Cleanup after tests
* Make sure status transition code runs even during API calls, not just in admin.
* Default visibility
* Fix attribute setting in API
* Use get name instead of get title
* variation id usage
* Improved cross sell templates
* variation_data
* Grouped product sync
* Notices
* Sync is not needed in API
* Delete
* Rename interfaces
* Update counts in data store
* Fix up tests in the product/* folder.
* Handle data store updates for grouped, variable, external, simple, and general data store updates for products.
* Variations & variable changes.
* Update -functions.php calls to use data store.
* Add an interface for the public product data store methods.
* Finished product factory tests
* Correctly delete in the api, fix up some comments, and implement an interface for the public variable methods.
* Fix up delete in all versions of the api
* Handle feedback
* Match protected decloration to parent
Mike Jolley
Claudio Sanches
Justin Shreve