new deliveryCharge attribute in order object
new registrationToken attribute in payment object
new object subMerchant
new method isRegistered
new subMerchant parameter for doAuthorization, doWebPayment, doCredit, doDebit, doImmediateWalletPayment and doScheduledWalletPayment
new miscData parameter for doWebPayment
new returnUrl parameter for verifyEnrollment