/**
* Calls the delete_files function, then displays a message.
*
* @param string $folder - path to the cache folder
* @param string $msg - show "cleared" message or not
*/
public function clearCache($folder = '', $msg = true)
{
require_once LIBS . 'Maintenance.php';
$maintenance = new Maintenance();
$maintenance->clearCache($this, $folder, $msg);
}
