Defficiency deathsquid and stuff

Changelog included.
Megatub changes and fixes

rcd to CE
engineering rewired so everything isn't wired into the grid
some slight layout changes in engineering
engineering foyer made larger with the removal of the waste of space
dead end maint
supermatter room added
NE solar moved to NW of dorms
singularity wall made unfinished - should always be by default
reconnected xenobiology power
toxins lit up
mechanics corridor fixed
port emergency storage added
fixed minisat turrets and changed the decor a bit
fixed research shuttle and gave it a temporary dock connected to toxins
launch
more door consistency changes
fixed some lighting in places
fixed access on minisat doors
change to break room layout so the maint above it is better
fixed some maint area zoning
fix robotics and aux tool storage power (holy shit)
deliberately stacking lights, fire alarms, air alarms and sec cameras on
top of each other is the height of retardation
general fixes like pipes somebody else cut
More fixes
More fixes!

Minor stuff on the whole like moving lights, deleting the ghost griff
friendly engineering light switches that turn off the entire
department's lights and little bugs generally.
Merge pull request #2052 from IratePirate/Bleeding-Edge

Megatub changes and fixes
Merge pull request #2051 from Duny-/defficiency

Defficiency deathsquid and stuff
Readded loadsa missing gun sprites.
Merge pull request #2056 from ComicIronic/GunDMIFix

Readded loadsa missing gun sprites.
Pomf in charge of updating the changelog