Update 20.2 - Some nice fixes

Hey all,

Just a small update to address a few things.

• Some slight optimisations.
  
• Some notifications now have more information.
  
• Bishop and Guard Captain now get a wage.
  
• Bishop and Guard Captain will no longer be able to be hired, and will quit their job if they are employed when they gain the position.
  
• Pregnancy is now capped at 45 years old.
  
• Fixed a bug that would prevent the AI from supplying some of their businesses.
  
• A few tweaks here and there.
  

Got some new walls, towers, and gates coming in the next major update.

Cheers!