* Fix - Abandoned cart conversation time settings field missing.
* Fix - Abandoned cart was not being sent for guest users.
* Fix - WP URL is used instead of Site URL for tracking links.
* Fix - Subscription template email endless loading when trying to select specific products.
* Fix - Embedded links on email template are not redirecting properly.
* Fix - Sending email in batches shows an error and prevents sending.
* Fix - Accommodate change of email addresses by customers for subscriptions.
* Tweak - Outdated JQuery reference in circliful directory causing PCI compliance failure.
* Fix - Add nonce check to Reports page bulk action form.
* Fix - Deleted Product causes fatal on attempt to send.
* Tweak - Increase width of category dropdown field.
* Fix - Extra `http://` added breaks links, when using URL variables.
* Fix - Shortcode {cart_contents} used in an abandoned cart email shows code rather than the products.
* Tweak - WC 3.9 compatibility.
