Simplify an arrive/ leave piston

conditions
holiday
triggers

#21

i have managed to test this fully now and it does work but I think it is still firing more than it should. i also get a log every time the guest fob has been away for the length of time that it need to be before it is allowed to work, is there a way to stop this?

There seems to be a delay on creating a snapshot of a piston now as well, is this a known thing since version 3 @Robin ? when i say delay I mean ages like a few mins at least, then if you press something on the page it will appear IE i just clicked trace again and that forsed it.