More server-side stuff

I’ve just set up the first basic implementation of slightly smarter maze selection. Instead of being purely random, mazes are now being selected based on how quickly others solved them and how quickly you solved previous ones. It will take a while for the system to learn this information. There are still a lot of mazes that have had very few attempts so it’s hard for the system to know their difficulty. I may change it so that instead of there being a 50-50 chance of either designing or solving a maze it would be 90-10 in favour of solving.

I’ve also changed it so that new players only get asked to solve mazes initially so that they can get used to the idea behind the game.

I expect to be tweaking this as more data starts to come through of how accurate my difficulty measurements are.