Merge branch 'dev-freeze' of https://github.com/Baystation12/Baystation12 into dev-freeze
Merge branch 'dev-freeze' of https://github.com/Baystation12/Baystation12 into dev-freeze
Fixed accidental rename during Phoron project
Fix to breathing in bad air.
Clarifies comment wording

Small things
Merge pull request #5092 from Ravensdale/dev-freeze

Fixes accidental renames during Phoron project
Readds icon_states removed by RKF in #4775

How was this not seen faster, I don't know.
Fixes #5109
Fixes #4973
Drones fixes.
Fixes #5098
Typo.
Merge pull request #5110 from Jarcolr/StealthRemoval

Readds icon_states removed by RKF in #4775
Merge pull request #5111 from Zuhayr/master

Fixes
Removes explosive implants from nuke ops
Mentor changes.

Mentors no longer see stealthmins
Mentors no longer see antagonists / have check_antagonist verbs
New debug verb:  Reload Mentors (or mods)
Merge pull request #5115 from Hubblenaut/master

Removes explosive implants from nuke ops
Fixes a minor icon-flicker thing with the drone fabricator.
Merge pull request #5122 from Zuhayr/master

Fixes a minor icon-flicker thing with the drone fabricator.
Merge pull request #5117 from Ccomp5950/mentor_change

Mentor changes.