Changed annotations to fit project line length limit

Multi line descriptions are allowed for the @method tag, these should now be within the 120 char limit for the project.

Author: AndrewCarterUK

src/Omnipay/Common/GatewayInterface.php

@@ -12,18 +12,28 @@
  * Omnipay gateway needs to define.
  *
  * @see AbstractGateway
- * 
- * @method \Omnipay\Common\Message\ResponseInterface authorize(array $options = array())         (Optional method) Authorize an amount on the customers card
- * @method \Omnipay\Common\Message\ResponseInterface completeAuthorize(array $options = array()) (Optional method) Handle return from off-site gateways after authorization
- * @method \Omnipay\Common\Message\ResponseInterface capture(array $options = array())           (Optional method) Capture an amount you have previously authorized
- * @method \Omnipay\Common\Message\ResponseInterface purchase(array $options = array())          (Optional method) Authorize and immediately capture an amount on the customers card
- * @method \Omnipay\Common\Message\ResponseInterface completePurchase(array $options = array())  (Optional method) Handle return from off-site gateways after purchase
- * @method \Omnipay\Common\Message\ResponseInterface refund(array $options = array())            (Optional method) Refund an already processed transaction
- * @method \Omnipay\Common\Message\ResponseInterface void(array $options = array())              (Optional method) Generally can only be called up to 24 hours after submitting a transaction
- * @method \Omnipay\Common\Message\ResponseInterface createCard(array $options = array())        (Optional method) The returned response object includes a cardReference, which can be used for future transactions
- * @method \Omnipay\Common\Message\ResponseInterface updateCard(array $options = array())        (Optional method) Update a stored card
- * @method \Omnipay\Common\Message\ResponseInterface deleteCard(array $options = array())        (Optional method) Delete a stored card
- */
+ *
+ * @method \Omnipay\Common\Message\ResponseInterface authorize(array $options = array())         (Optional method)
+ *         Authorize an amount on the customers card
+ * @method \Omnipay\Common\Message\ResponseInterface completeAuthorize(array $options = array()) (Optional method)
+ *         Handle return from off-site gateways after authorization
+ * @method \Omnipay\Common\Message\ResponseInterface capture(array $options = array())           (Optional method)
+ *         Capture an amount you have previously authorized
+ * @method \Omnipay\Common\Message\ResponseInterface purchase(array $options = array())          (Optional method)
+ *         Authorize and immediately capture an amount on the customers card
+ * @method \Omnipay\Common\Message\ResponseInterface completePurchase(array $options = array())  (Optional method)
+ *         Handle return from off-site gateways after purchase
+ * @method \Omnipay\Common\Message\ResponseInterface refund(array $options = array())            (Optional method)
+ *         Refund an already processed transaction
+ * @method \Omnipay\Common\Message\ResponseInterface void(array $options = array())              (Optional method)
+ *         Generally can only be called up to 24 hours after submitting a transaction
+ * @method \Omnipay\Common\Message\ResponseInterface createCard(array $options = array())        (Optional method)
+ *         The returned response object includes a cardReference, which can be used for future transactions
+ * @method \Omnipay\Common\Message\ResponseInterface updateCard(array $options = array())        (Optional method)
+ *         Update a stored card
+ * @method \Omnipay\Common\Message\ResponseInterface deleteCard(array $options = array())        (Optional method)
+ *         Delete a stored card
+*/
 interface GatewayInterface
 {
     /**