* Add note traits to check for existence and generic conditions
* Add new note type for marketing notes
* Delete marketing notes when opted out
* Add tests for marketing notes
* Don't truncate table data on uninstall if WooCommerce Admin is in core.
* DROP tables on uninstall (like core does).
* Migrate wc_ prefix options to woocommerce_.
This allows core WC to clean up when uninstalled.
* Migrate wc_ prefixed user meta fields to woocommerce_.
This allows core WC to clean up when uninstalled.
* Fix use of date().
* Update comment describing the option value filter.
Joshua T Flowers
Jeff Stieler
Ron Rennick