Preset::install

public function install()
{
	if(!self::checkVersion())
	{
		return true;
	}

	$result = $this->addEssentialConnectors();
	if($result)
	{
		self::updateInstalledVersion();
	}

	$callback = array(__CLASS__, 'installVersion' . self::getVersion());
	if (is_callable($callback))
	{
		call_user_func_array($callback, array());
	}

	return $result;
}