Sustainer payment date change

This feature allows a permissioned user to change the date in which a recurring payment is charged.
Let's try logging an order revision instead so that it will persist with the order. According to the chat we'll need to load the order and save it. We'll have to do this for each remaining charge.

    $order = commerce_order_load($did);
    $order->revision = TRUE;
    $order->log = $message;