Add the composer autoload to the sample config

config.sample.php

@@ -6,6 +6,7 @@ error_reporting(E_ALL);
 set_include_path(dirname(__FILE__).'/src:'.dirname(__FILE__).'/lib/php:'.get_include_path());
 
 require_once 'UNL/Autoload.php';
+require_once __DIR__ . '/vendor/autoload.php';
 
 /* A Google Loader API Key is presumably needed to ensure proper functionality.
  * Register for an API Key at http://code.google.com/apis/loader/signup.html