Norwegian VAT support added

There used to be a message on the site saying that a VAT invoice would be sent separately to Norwegian customers. This is no longer necessary, and the shopping cart supports VAT directly.

After your payment has been received, you can also see the amount in NOK if you go to your account, click Orders, click your order, and click the link to view a printable invoice.

Example: https://www.evernote.com/shard/s2/sh/0157a148-b1d1-478c-b304-af104460463...