FIX docblock to reflect fixed functionality

Fixes #168 in that it has already been fixed, but the docblock doesn't reflect the change. Also means the workarounds now throw errors, so patches should be reversed.

Author: andrewandante

src/IntercomClient.php

@@ -169,7 +169,7 @@ public function get($endpoint, $query)
 
     /**
      * Returns next page of the result.
-     * @param array $pages
+     * @param \stdClass $pages
      * @return mixed
      * @throws \GuzzleHttp\Exception\GuzzleException
      */