R1:07d640d2b628

Show invoices on account information page

Summary:
Ref T6881. This is basically just some UX.

Right now, if we invoice you, you can //technically// pay it but since we don't tell you about it and don't show it in the UI you'd have to guess the ID by manipulating the URI. We should probably be at least a little more aggressive about billing.

In the common case when we generate a cart/order, we don't show it to the user or merchant in Phortune until the user takes a payment action (basically, Phortune…