Gateway logs linked to invoice
We need a simple way to view the gateway logs for a specific invoice.
Right now we have customers who want to know why a payment failed for a
specific invoice and we have to go dig through the gateway log to find
out why. I would like to see in the admin area when viewing an invoice
to also see a list of gateway log entries related to that invoice. This
would make it easier for us to tell them why the charge failed.