Patch 0.9.3.2 - More fixes! (One biggie!)

This little patch does the following:

• Gets rid of four crashes (hurray!): Two related to caravans, one asking for news from a visitor, and another to working.
• Stars are no longer visible below the deepest depth.
• Visitors AI has been improved and a few bugs related to these have been fixed.
• Risen skeletons can no longer have the "tough skin" perk, because that was just weird.
• Caravans leaving will be better at finding the correct exit. EDIT: It also fixes it, so that those with peon-tasks as their highest priority will really prioritize hauling and not get stuck doing other stuff. This is possibly quite a big improvement/fix, so please let me know how it works!

Thanks for all the kind words and feedback! Best wishes and lots of love! <3 //Mattias