Fixes #4058
Fixes #4050
Fixes #4042
Allows gibs to be scanned for DNA.
Fixes #4040
Fixes #4034
Possible fix for #3712
Added checks for borers to various key-swapping powers to prevent weirdness.
Prevented staff of change from working on infested mobs.
Plopped the borer out of the skull when the brain is removed.
Various tweaks to cortical borers taken from the /tg/ discussion on the potential port.
Added cortical borers to the various HUDs.
Added ghost eavesdropping for borertalk.
Added cortical borer spawn event and admin verbs.
Added sugar docility to borers.
Added short-range paralysis proc for unhosted borers.
Added borer checks to handheld and advanced scanners.
Amendment to chemistry beaker range fix.
Merge pull request #4069 from Zuhayr/master

Bug fixes.
Possible fix for borers teleporting through windows.