* Fix - Text domain for translation string.
* Fix - Generate only one .pot file.
* Fix - When order is reverted to Pending Payment, mark bookings as unpaid.
* Fix - Slots remaining not showing when displaying times in visitor's timezone.
* Fix - Skip missing cost rules when deleting a cost rule from the middle of the table.
* Fix - Do not send reminder if booking has passed.
* Fix - Ensure min and max duration is always 1 for products with fixed duration.
