/**
  * Get an instance of the standard autoloader
  *
  * Used to attempt to resolve autoloader classes, using the 
  * StandardAutoloader. The instance is marked as a fallback autoloader, to 
  * allow resolving autoloaders not under the "Zend" or "ZendX" namespaces.
  * 
  * @return ZendX_Loader_SplAutoloader
  */
 protected static function getStandardAutoloader()
 {
     if (null !== self::$standardAutoloader) {
         return self::$standardAutoloader;
     }
     require_once dirname(__FILE__) . '/StandardAutoloader.php';
     $loader = new ZendX_Loader_StandardAutoloader();
     $loader->setFallbackAutoloader(true);
     self::$standardAutoloader = $loader;
     return self::$standardAutoloader;
 }