* Fix - Ticket information link in email and order confirmation page doesn't work.
* Fix - Emails to ticket individuals who've booked tickets are not sent.
* Fix - Issue where order details are not shown in PDF invoice when there's no ticket.
* Fix - Issue where address details in an order are not populated when ticket is created manually.
* Fix - PHP notice of undefined variable ticket_product.
* Fix - Display order number in order link from edit ticket screen.
* Fix - PPEC button in single product page is rendered twice.
* Fix - Ticket is not linked in order product item when order is created via admin.
* Fix - Pot file not named correctly.
* Tweak - Add SKU column in exported CSV.
