Fixes #56 implemented klarna reservation number in the order payment information block and in the sales_flat_order_payment table
Fixes #57 fix sql update for older magento versions
Fixes #25 remove observer refund creditmemo now using the refund() function
Fixes #25 remove observer refund creditmemo now using the refund() function
Fixes #58 Implement Interest Rate for installment and make it possible to have different installments foreach creditcard type
Fixes #59 fixed that you can use CSE and Installments payments through the adyen creditcard api
Fixes #55 show nice error if HMAC key is not filled in
Fixes  #59 fix that installments is only in request if there are installments selected
Fixes #60 fix total amount is correctly shown if you enable tax. and change name fee to payment fee
#58 important fix to add fee when the quote is saved
#58 fix that installment fee is going into the creditmemo if you create it
Fixes #61 add Card Type, Last 4 of credit card number, AVS results and CVV results for creditcards payments, creditcard payments with CSE enabled and OneClick payments