Beta 25 - a quick bugfix release

Oh well, the beta version 24 had a bunch of bugs. Some of them were fatal, and some just otherwise game-breaking.

Version 25 doesn't add new features, this is just a quick update to fix the bugs.

If you happen to have a save folder from an earlier version it should work just fine. But there is a minor chance of it failing to load, as I had to alter the way some of the data is saved. There are automatic compatibility measurements to load an older save without hiccups, but I couldn't fully test it for in the heat of the bughunt I lost all of my own older saves.