public static function getStream($use_prefix = true, $ua = null, $uamask = false)
	{
		// Setup the context; Joomla! UA and overwrite
		$context = array();

		// Set the UA for HTTP
		$context['http']['user_agent'] = $ua ?: 'Joomla! Framework Stream';

		if ($use_prefix)
		{
			return new Stream(JPATH_ROOT . '/', JPATH_ROOT, $context);
		}

		return new Stream('', '', $context);
	}