[MAP] Wizard Ship / Nuke Ops Base Immersion Change

T̶h̶r̶e̶e̶ Two changes, one big and t̶w̶o̶ one minor. I'll explain all t̶h̶r̶e̶e̶ two from the top. All only affect the second Z-Level.

------

Wizard Ship

This change removes the Wizard's Den and replaces it with the Wizard's ship. This was prompted primarily due to the fact that a Wizard using the Scything Orb (which grants them X-Ray vision) could see that not only are they in a box in space, but right next to the Nuke Op Base and Central Command.

Currently the Wizard's Ship does not go anywhere, any discussion on having the Wizard be able to fly his ship to the station z-level is a balance discussion.

Ship as it stands in game.

![screenshot 2014-12-26 15 55 17](https://dl.dropboxusercontent.com/s/dpbcyburhrurxot/Screenshot%202014-12-26%2022.54.53.png?dl=0)

Old Ship Image
(https://cloud.githubusercontent.com/assets/6595389/5524825/ba08c2d0-8a16-11e4-82f1-291910a7aac5.png)

-----

Nuke Ops Base Immersion Change

Minor change to the Nuke Ops ready room window, if you stood  near the window you could see the exterior wall (aka: the fourth wall) surrounding the ops base. I simply extended the snow tiles southwards.

In game apperance
![screenshot 2014-12-22 20 05 52](https://cloud.githubusercontent.com/assets/6595389/5524839/f18f7e56-8a16-11e4-8576-ee3972275ae6.png)

Overall change
![screenshot 2014-12-22 20 06 04](https://cloud.githubusercontent.com/assets/6595389/5524844/fecbe7da-8a16-11e4-8c51-2e25ab4740b7.png)

-----

E̶R̶T̶ ̶R̶e̶a̶d̶y̶ ̶R̶o̶o̶m̶

F̶i̶r̶s̶t̶ ̶p̶a̶r̶t̶ ̶o̶f̶ ̶m̶y̶ ̶E̶m̶e̶r̶g̶e̶n̶c̶y̶ ̶R̶e̶s̶p̶o̶n̶s̶e̶ ̶T̶e̶a̶m̶ ̶P̶R̶,̶ ̶s̶i̶m̶p̶l̶y̶ ̶a̶d̶d̶s̶ ̶i̶n̶ ̶t̶h̶e̶ ̶E̶R̶T̶ ̶R̶e̶a̶d̶y̶ ̶R̶o̶o̶m̶ ̶t̶o̶ ̶C̶e̶n̶t̶r̶a̶l̶ ̶C̶o̶m̶m̶a̶n̶d̶.̶ ̶O̶n̶l̶y̶ ̶h̶a̶s̶ ̶t̶h̶e̶ ̶t̶i̶l̶e̶s̶ ̶a̶n̶d̶ ̶w̶a̶l̶l̶s̶ ̶s̶e̶t̶ ̶u̶p̶ ̶w̶i̶t̶h̶ ̶a̶ ̶w̶o̶o̶d̶e̶n̶ ̶b̶a̶r̶r̶i̶c̶a̶d̶e̶ ̶a̶t̶ ̶t̶h̶e̶ ̶f̶r̶o̶n̶t̶.̶ ̶(̶M̶e̶a̶n̶t̶ ̶t̶o̶ ̶s̶i̶m̶u̶l̶a̶t̶e̶ ̶t̶h̶e̶ ̶"̶c̶o̶n̶s̶t̶r̶u̶c̶t̶i̶o̶n̶"̶ ̶o̶f̶ ̶t̶h̶e̶ ̶E̶R̶T̶ ̶r̶o̶o̶m̶ ̶i̶f̶ ̶y̶o̶u̶ ̶w̶i̶l̶l̶)̶.̶

T̶h̶i̶s̶ ̶w̶i̶l̶l̶ ̶n̶o̶t̶ ̶a̶f̶f̶e̶c̶t̶ ̶n̶o̶r̶m̶a̶l̶ ̶g̶a̶m̶e̶ ̶p̶l̶a̶y̶ ̶i̶n̶ ̶a̶n̶y̶ ̶p̶o̶s̶s̶i̶b̶l̶e̶ ̶w̶a̶y̶.̶

O̶v̶e̶r̶a̶l̶l̶ ̶c̶h̶a̶n̶g̶e̶
![screenshot 2014-12-22 20 06 20](https://cloud.githubusercontent.com/assets/6595389/5524854/36bc6322-8a17-11e4-80a7-db6c9096b24a.png)

Edit: Keeping the ERT changes to their own PR to be judged on their own merit.


Don't include these. Please untick `automatically set FILE_DIR for subdirectories` in the `Build -> Preferences for tgstation...` submenu on dreammaker.