Potential fix for Issue #17

Added atmospheric substation much like the other emergency tank systems
about the station.

Removed the Space Station 13 logo for two reasons: 1) it refers to the
game ICly, which is peculiar, and 2) it is 8 floor tiles by 2 floor
tiles, which cannot be symmetrically placed in front of a 3 tile wide
hallway.
Merge pull request #22 from kbernges/master

Potential fix for Issue #17