VAT calculation

The VAT calculation should be 33,19 x 0,23 = 7,63 euro

In Manager, VAT is calculated separately per each line item, then added up. This is standard way to calculate VAT across all double-entry accounting systems.

@lubos, it would be good to have an over-ride facility on VAT value. Sometimes, e.g. expenses which include a meal will have a mixture of VATable and non VAT items. When claiming Expenses, it is common practice to enter a lump sum for VATable and another entry for non VATable. adding up to the total of the claim. However, individual receipts may contain a mixture of VAT and non VAT items. To enter every single receipt would be very time consuming. Would it be possible to add this functionailty