Fix: Provide more specific docblock

Author: localheinz

src/Facebook/FacebookBatchResponse.php

@@ -40,7 +40,7 @@ class FacebookBatchResponse extends FacebookResponse implements IteratorAggregat
     protected $batchRequest;
 
     /**
-     * @var array An array of FacebookResponse entities.
+     * @var FacebookResponse[] An array of FacebookResponse entities.
      */
     protected $responses = [];
 
@@ -67,7 +67,7 @@ public function __construct(FacebookBatchRequest $batchRequest, FacebookResponse
     /**
      * Returns an array of FacebookResponse entities.
      *
-     * @return array
+     * @return FacebookResponse[]
      */
     public function getResponses()
     {

src/Facebook/GraphNodes/GraphUser.php

@@ -123,7 +123,7 @@ public function getLink()
     /**
      * Returns the users birthday, if available.
      *
-     * @return \DateTime|null
+     * @return Birthday|null
      */
     public function getBirthday()
     {