Security vulnerability fix — The Pilgrimage Steam update #410421

Oops I must offer my apologies to the one or two people who might actually be playing the game at the moment - I have nuked your save. This was unavoidable. Due to the manner in which nerds fail to communicate rather important things to the wider world, it came to my attention rather late that my save system - which utilised something called the binary formatter - was potentially unsafe and relied upon technical things that will probably be deprecated in future software in general. Put simply, the way it read data from the save put users at potential risk from code injection - though this risk would only exist if you were downloading someone else's save file from nefarious sources on the internet. So, a minimal edge-case risk, but still one I could not allow. Silver Lining The save system now uses a more flexible xml-based solution, which not only means the game is actually more future p...