Ensure Request emits initial Response data as string (#66)

Author: mmelvin0

src/Request.php

@@ -222,7 +222,7 @@ protected function parseResponse($data)
             $headers
         );
 
-        return array($response, $psrResponse->getBody());
+        return array($response, (string)($psrResponse->getBody()));
     }
 
     protected function connect()

tests/RequestTest.php

@@ -73,7 +73,7 @@ public function requestShouldBindToStreamEventsAndUseconnector()
 
         $response->expects($this->once())
             ->method('emit')
-            ->with('data', array('body', $response));
+            ->with('data', $this->identicalTo(array('body', $response)));
 
         $response->expects($this->at(0))
             ->method('on')