BaseAction has a protected options field

a8b875b5 added a protected field to the BaseAction, which breaks UpdateVersionClassAction as it defined options as private.

PHP Fatal error:  Access level to Liip\RMT\Action\UpdateVersionClassAction::$options must be protected (as in class Liip\RMT\Action\BaseAction) or weaker in /home/david/liip/symfony-cmf/doctrine/phpcr-odm/vendor/liip/rmt/src/Liip/RMT/Action/UpdateVersionClassAction.php on line 52