Fixes #6820

Readds missing check, makes hoverpods their own mech type and moves them
to another folder.
Fixes extinguisher blasts (and effect/effects in general, like smoke) not being able to pass over tables and through grilles.
fixes some annoying punctuation errors.
Fixes turbine computers disappearing when broken/out of power.
adds an ex_act to ore boxes. Explosions no longer del all the ore in a box
silly me
Merge pull request #6828 from Glloyd/formatting

Fixes some annoying punctuation errors
Merge pull request #6827 from Glloyd/pass

Fixes effect/effect and Children Not Passing Over Tables/Through Grilles
Fixes #6822
incorporates Zuhayr's suggestion
Cleans up hovererpod move code, adds ion trails

No need to duplicate the mecha move code when we're only interested in
drifting. The hoverpod also starts drifting when it runs out of power,
now.
Merge pull request #6830 from Glloyd/fixes

Two More Little Fixes
Merge pull request #6823 from mwerezak/hoverpod

Fixes #6820, #6822, adds ion trails to hoverpods.
Removes excessively spammy admin log messages
Fixes duplicate antag radio messages
Bring back needed code
Fixes emergency shield generators running with no power.
Destroyed emergency shield generators no longer just disappear silently.
Merge pull request #6842 from Hubblenaut/master

Fixes duplicate antag radio messages
Merge pull request #6840 from Ravensdale/master

Removes excessively spammy admin log messages