v0.17.11

Hi, everyone! v0.17.11 has just reached the default branch on Steam. This is a very minor patch but with one very important fix in it.

• When the user sets their game’s subscription pricing, maybe we should actually set that pricing and not just ignore it and keep using the default value. (I’m so embarrassed by this bug!)
  
  
• Also fixes a few very rare stumbling blocks; one involving a map object composed of a surprisingly large number of pieces (I’m guessing someone got very enthusiastic with adding blocks to a scenery building!), and one involving someone trying to go up to a major version number without having first selected a new technology to learn. The game should now cope with both of these situations much better!