Fix autoloader fatal errors from class reorganization

Author: MegaphoneJon

src/AIMGateway.php

@@ -179,7 +179,7 @@ public function paymentPlanQuery(array $parameters = array())
      */
     public function query(array $parameters = array())
     {
-        return $this->createRequest('\Omnipay\AuthorizeNet\Message\QueryRequest', $parameters);
+        return $this->createRequest('\Omnipay\AuthorizeNet\Message\Query\QueryRequest', $parameters);
     }
 
     /**

src/Message/Query/AIMAbstractQueryRequest.php

@@ -2,6 +2,8 @@
 
 namespace Omnipay\AuthorizeNet\Message\Query;
 
+use Omnipay\AuthorizeNet\Message\AIMAbstractRequest;
+
 /**
  * Authorize.Net AIM Abstract Request
  */