Merge branch 'master' of https://github.com/tgstation/-tg-station
Merge branch 'master' of https://github.com/tgstation/-tg-station
Merge branch 'master' of https://github.com/tgstation/-tg-station
Merge branch 'master' of https://github.com/tgstation/-tg-station
Polishing up my Centcom-inspired away map.

Adds more detailing in a lot of floor tiles, works around an issue with the carpet in the courtroom looking weird.
Removes piping in the thunderdome, as it seems to not work on away missions.
Adds salt and pepper to the kitchen arena.
A few other seekrits.
Merge pull request #1599 from Cheridan/AwayMaps

CentcomAway Update