Sounds in space/places with low pressure are quieter. You cannot hear people in low pressure environments unless you are next to them (or are them)
Removes unnecessary check
Cleans up italics logic
Merge branch 'master' of https://github.com/tgstation/-tg-station into SpaceNooneHearScreams

Conflicts:
	code/__DEFINES/misc.dm
Adds a changelog
Fixes changelog, stupid Notepad++
Merge pull request #5956 from RemieRichards/SpaceNooneHearScreams

In space, no one can hear you scream