IcsBuilder::prepareValue

private function prepareValue($val, $key = false)
{
	switch($key)
	{
//			case 'dtstamp':
//			case 'dtstart':
//			case 'dtend':
//				$val = $this->formatDateValue($val);
//				break;
		default:
			$val = $this->escapeString($val);
	}
	return $val;
}