Beta Generic City 1.11

• I found some old files that are no longer required.
  
• Added some roads to AI path that I missed.
  
• I made the roundabouts one way like they should have been.
• killed some areas of grass poking through the roads.
• Added in a few buildings on empty plots I missed.

Probably not going to improve loading times for some users, but those files I removed were cached files for the trees/rocks. Hopefully not having cached files in the maps folder will help somewhat. It may...