Add customer data to SEPA request

Merge pull request #60 from alfie-loakes-cko/apm-customer-data

Add customer data to Sepa request.

Payment Related Fixes

• Update README.md logo.
• Fix issue related to payment controller.

HTTP handling improvements

• Update cko-idempotency-key for void, capture and refund endpoints
• Optimise setbody HTTP Request method verification

Webhooks API improvements

• Include payload body when creating put and patch requests
• When registering or updating a webhook the headers returned are now an instance of WebhookHeaders allowing you to update a registered webhook

Add PayPal support

1.0.9

Update README.md

Webhook Improvements

Merge pull request #34 from checkout/dev

Dev

Payouts, QPay and list of supported banks

Merge pull request #33 from checkout/dev

Dev

Fawry, Bancontact and KNET

Merge pull request #26 from checkout/dev

1.0.6

Remove Full Card tokenization support.

Merge pull request #22 from checkout/dev

Remove full card example

Klarna and EPS payment methods supported.

Klarna supported.
EPS supported.
Fix iDEAL example.
Update SEPA example.
Correct Library\Model::isSuccessful condition.
Rename Sources\BillingAddress to Sources\SepaAddress.
Override config with an array.
Fix HttpHandler exeption typo.
Get error type from Model.