Map fixes for box and metastation.

Improves AI sat a bit to use more dark tiling on box.
http://i.imgur.com/ZJBfmqH.png

Fixes #5513 
Fixes #4505 
Fixes #4827 
Fixes #5686
Fixes #5706
Fixes #5689
Fixes #5021

I also request closing of #5643 as it seems to not actually exist, and #4719 because it's too poorly documented to tell me what's missing.