Register intial options for sequential order numbers. #2020
Tweak input size for settings. #2020
Add first two helper functions for sequential payment numbers. #2020
Tweak edd_get_next_payment_number() so it works. #2020
Show order number in payment history. #2020
Make edd_get_payment_number() return the payment ID if no order number exists. #2020
Update template files to use edd_get_payment_number(). #2020
Add order number to purchase receipt and export. #2020
Add support for search order numbers. #2020
Fix merge conflict
Introduce upgrade routine for sequential order numbers. #2020
Fix merge conflict