[Patch] Added the ability to get and set the profile parameter

[benjam-es]

No description provided.

[amacneil]

Can you test the latest master and let me know if that works for you?

[benjam-es]

I get the following error

Call to undefined method Omnipay\SagePay\ServerGateway::setProfile()

On mine, I had the two methods inside the ServerGateway class aswel as inside the abstract class - that worked for me.

[amacneil]

Just set it on the Request instead of the Gateway.

$gateway->purchase(['amount' => '10.00', 'profile' => 'LOW']);

There's not much point putting it directly on the gateway class unless you add it to the gateway options.