WooCommerce API Manager 3.3.0

* New: Added Action Filters, wc_api_manager_endpoint_title_api_keys, wc_api_manager_endpoint_title_api_downloads, wc_api_manager_add_menu_items_api_keys, wc_api_manager_add_menu_items_api_downloads. Changing endpoints requires Settings > Permalink Settings to be manually Saved to refresh the endpoints.

* Fix: Order edit screen > Access Expires was failing to update when new expiration date set.
* Fix: localized_datetime_timestamp() method to correctly return localized timestamp.
* Tweak: Confirm an API Resource is not a lifetime subscription before sending renewal email notifications.
* New: Toggle log for API Resources cleanup event added to Settings.
* New: Added templates/myaccount/related-api-resources.php with Action Filters to add API Keys and API Downloads links to Order Details and Thank You pages.
* New: Added to templates/emails/api-keys-order-complete.php: Action Filters: wc_api_manager_email_api_product_heading, wc_api_manager_email_product_order_api_keys_row,
* New: Added to templates/emails/plain/api-keys-order-complete.php: Action Filters: wc_api_manager_email_api_product_heading, wc_api_manager_email_product_order_api_keys_row,
wc_api_manager_email_master_api_key_row, wc_api_manager_email_master_api_key_message_row.

* Update: Fix format of changelog for WooCommerce.com Version history parser. Gap in versions is due to difficulty with formatting for changelog parser at WooCommerce.com.