Nuke Op Gloves: The Blackening

-Removes the yellow gloves on the Nuke Ops shuttle. (They were completely redundant, as the gloves they start with were already insulated (!!!)).
-In return, adds a laundry room to the nuke ops staging area, allowing them to paint their gloves as they please if they want to be stealthy.
-Removes 'SWAT' gloves in favor of the less-weirdly-specific combat gloves. Codewise, they were exactly the same.

Updates spacebattle.dmm, as it had an instance of swat gloves.
Adds a link in the mapmerge tool instructions to assist in setup.
Removes the roomfiller n2o canister, replaces with a normal canister. For Aranclanos~
Merge pull request #1606 from Cheridan/Map

Nuke Op Gloves: The Blackening [MAP]