Manx meet-up 2018.

This is a provisional time and day for a meetup for coffee and technical chat. I've chosen Mad Sunday as the day because there will definitely be no races running other than the ones involving naked people on bikes being chased by the police. It's also better suited to those who may be working during the week. Most of these meet-ups go on for a few hours, so even if you're working it may still be viable to drop in.