Map Update. Icarus is here!

Added in a mostly-functional Icarus. Of course, whether or not launching
drones at Hypatia is possible remains to be seen, but at least she's a
spaceworthy thing w/ a basic Atmos system. Can have mapmerge be used w/
any more of Juani2400's edits, but the z-level amount is now set to 7 in
order to compensate for the space the Icarus and the other features of
its z-level take up.

![space station 13 2014-04-24 152111](https://cloud.githubusercontent.com/assets/4933842/2796683/53f6f1f2-cc15-11e3-943a-8f61133298d0.png)

Added: Icarus outer hull (4/20/2014)
Added: Icarus Atmosphere (4/21/2014)
Added: Icarus' Insides (4/22-23/2014)
Added: A skeleton of the military training facility for Heinrich (4/23/2014)
Tweaked: Manhandled in a drone bay and functional blast doors. (4/24/2014)

Known Issues: 
Icarus does not light up properly from the start of the shift. This has to do with the area not auto-checking for lighting or power systems, so it automagically assumes there's a powernet, but not a lighting system.

If the teleporter beacon on the pile of hardsuits isn't used, someone could try to use the Teleporter to go to the Icarus, and instead, find themselves flying through spess.

Drone will try to kill anyone who approaches, but it can still be deleted, so no biggie.

Usual map issues from the previous map this was based on, where some of Security's wiring and Atmos piping is broken.

Edit: Did not realize until too late, but I put in an r wall where the door is that leads from the bathroom/airlock buffering room into the drone bay area. This should, however, be a negligible thing (as anyone could just delete the r wall and spawn turf/simulated/floor).