WooCommerce Bookings 2.1.9

* Fix - Memberships discounts not working.
* Fix - Duplicating product creates multiple copies of meta fields.
* Fix - Fatal errors when applying bookable person coupons when other product types in cart.
* Fix - Deleting one booking deletes the whole order.
* Fix - Leftover bookings cron hooks after booking was deleted.
* Add - Is valid booking check to 'wc-booking-complete' action.
* Fix - Only sync Google Calendar if the integration is configured.
* Fix - When a resource is attached, booking multiple days shows partials days when they are not.
* Fix - Base cost did not include resource cost unless there were persons.
* Fix - `/bookings/` slug always redirects to Blog page.
* Fix - Undefined offset when viewing order with persons added to the booking.
* Fix - All day booking option was being ignored when parsing bookings for calendar availability.
* Fix - Delete database entries on uninstall only in case `WC_REMOVE_ALL_DATA` is true.
* Fix - Manual POST request can bypass calendar validation.
* Tweak - Update order status if booking status changes to paid or unpaid.
* Tweak - Update maximum resource count indicator on calendar block.
* Fix  - Undefined variable notice for booking_persons when editing booking.
* Fix  - Issue where availability rules were not applied against duration calculation.
* Tweak - Refactor `find_fully_booked_blocks` to be consistent with the time slots display.
* Fix - Not needed 'to' label added for Date Range (Global Availability) when also Date Range with time is added.
* Fix - Virtual orders were being marked as processing after being marked as completed.
* Tweak - Hide adjacent buffering option for Days, as it is not used for Days.

* Fix - Display price is not changed on the front-end when updated in the back-end.
* Fix - Unlink person types from product instead of deleting them, to allow existing bookings to refer to them properly.
* Add - Option to remove unused person types under WooCommerce > Status > Tools.
* Fix - When resource/persons limit is hit the entire day is blocked, not just the hour.
* Fix - Skip persons with zero count for booking summary in emails and orders.
* Fix - Resources ranges not exluding times from bookable products.
* Fix - Admin day calendar view showing wrong time for bookings spanning multiple days.
* Fix - Price shows as Free even though person types have value.
* Fix - Display Cost does not display From in all cases.
* Add - Option to take WP TimeZone into consideration for `wc-booking-reminder` and `wc-booking-complete` scheduled events.
* Fix - Coupon updates for WC 3.0 compatibility.
* Fix - Bookings spanning 2+ days shows up as being booked the day before on admin Day View calendar.

* Fix - Booked shared resource blocks off availability for other products.
* Fix - Issue where persons number disappears during booking process.
* Fix - UI issue with the CSS classes for partial/fully booked in the case of automatic resource assignment.
* Fix - Trashing a booking will no longer trash its order if order has other items.
* Fix - Compatibility issue with Product Add-Ons integrations.
* Fix - Update compatibility with Deposits when the status of the order is 'Partially Paid'.
* Fix - Blank description on Google Calendar.
* Fix - Booking with persons and resources availability incorrect.
* Fix - Issue with availability spanning midnight.
* Fix - Issue with Booking with multiple resources showing booked days as available.