0.3.6 (build 1)
—User can now add mileage to invoice only once.
—User can adjust mileage details in both settings and invoice.
0.3.6 (build 2)
—User can adjust mileage-type and mileage details in both settings and invoice.
0.3.6 (build 3)
—Mileage cost: User can change details in cost-per-mile calculation, and those changes are now saved.