Add vendor dir to autload.

Load.php

@@ -73,7 +73,7 @@ class Load
             trigger_error('Can\'t create directory: "' . $dir . '"', E_USER_ERROR);
         }
 
-        $scan = array(PATH . '/' . APP . '/src', PATH . '/lib');
+        $scan = array(PATH . '/' . APP . '/src', PATH . '/lib', PATH . '/vendor');
         $exclude = array_merge(self::$exclude, array(PATH . '/.git', PATH . '/lib/core/tests', PATH . '/lib/core/.git'));