More cascading of vendor credits and new code around the site. Spent some time on the payables homepage, who needs splits (payments on account), and who needs reimbursements. Those are different payables reports. After that, I started into adding code on the add/edit expense/receipt page. That is where you actually start using a vendor credit as a payment type. I didn't get all the way done but at least got it to the level of being able to run the first vendor credit through and having it auto deduct from the existing vendor credits stored in the special accounts. More testing yet to come.

Light clean-up at the end of the day. Added code to one other page that got missed earlier.