v1.0.0

amount is now specified as a decimal (i.e. '10.00' instead of 1000
to represent $10.00. Passing integers will throw an exception, reminding you
to update your application code. To be clear, that means instead of this:

$gateway->purchase(array('amount' => 1000, 'currency' => 'USD'));

You must now create the request like so:

$gateway->purchase(array('amount' => '10.00', 'currency' => 'USD'));

This should avoid any further confusion over how to specify the amount.

• Added Mollie payment gateway
• Added notifyUrl and issuer fields to example app