Fixes #559 - Changelings are no longer so obviously faking when they are faking death.
Merge pull request #574 from Carn/Issue559

Fixes #559 - Changelings are no longer so obviously faking when they are...
Merge branch 'master' of https://github.com/tgstation/-tg-station into borgnerf
Replaced borg crit state with a gradual breakdown of its functions.
Moved the self check after the health check for welding tools