-Replaces the holodeck boxing ring that no longer works with a dodgeball arena. Adds dodgeball sprites and defines.
-Fixes the crew monitoring console disappearing when damaged (meant to do this before but the change didn't go through somehow)
-Readds the space piano, removes the useless /device subtype from its path.

-Makes tables use a less hardcoded method to determine iconstate.
Merge branch 'master' of https://github.com/tgstation/-tg-station into Master
-Adds the dodgeball sound effect.
-Adds a two-headed coin to maintenance.
-Adds the RD's plant to his office.
-Adds lightswitch to hydroponics back room.
Merge branch 'master' of https://github.com/tgstation/-tg-station into Master

Conflicts:
	maps/tgstation.2.1.2.dmm
-Updating my map. Used the tool thing. It's pretty neat. I think I did it right??
Merge branch 'master' of https://github.com/tgstation/-tg-station into Master
Merge branch 'master' of https://github.com/tgstation/-tg-station into Master
updating my dme
Merge pull request #492 from Cheridan/altbranch

[Map] HoloDodgeball & More