shipping incl tax is incl tax, credit memo payment fees exist
Merge pull request #33 from madepeople/hotfix_shipping_amount_and_creditmemo

shipping incl tax is incl tax, credit memo payment fees exist
correctly calculate the tax in the payment fee for the quote
Merge pull request #34 from madepeople/hotfix_payment_fee_tax

correctly calculate the tax in the payment fee for the quote