use cli restart command instead of _restart
use cli restart command instead of _restart

- to restart controller via admin
- otherwise, we have no clean restart, but a "kill" of all adapters and controller. This has the effect that e.g. "History" data are not stored
- fixes https://github.com/ioBroker/ioBroker.js-controller/issues/561
ioBroker/ioBroker.admin,ioBroker/ioBroker.admin