several fixes inc #233

Fixes icon creation issue in certain situations such as humanising
monkeys and cloning
Fixes humanized monkeys reverting to monkey name after being used for
cloning
Fixes humanized monkeys being made as human parent object instead of
human/race
Machine people fixes

Disables overheating as most players reporting it makes machine people
unplayable

Fixes machine people's immunity to clone damage

Ensures machine people fall apart and consiousness transferred to
posibrain properly

Prevents robotic chest and groin being seperated which was leading to an
unrepairable body
Revert "Fix"

This reverts commit 29013f1940523c2f73b9e9e0b900a7a528874771.
Real fix
More adjustments. Implemented gas exuding/consumption (currently unused). Implemented cuttings, fixed some issues.
Removing the gaz stuff from botany
Fixes #5839 by making the comb slightly more gender aware.
Fixes #5844 by only having a supermatter explosion affect living entities on the same Z-level.
Recasts objects to avoid usage of :
Is a little convoluted but this removes the last X: use in supermatter.dm
Psychiatrist/Psychologist update.

Conflicts:
	code/game/jobs/job/medical.dm
	icons/mob/uniform.dmi
	icons/obj/clothing/uniforms.dmi
Changed hydro trays, fertilizer and syringes over to use the reagent procs.

Conflicts:
	code/game/machinery/biogenerator.dm
	code/modules/clothing/suits/jobs.dm
	code/modules/reagents/Chemistry-Reagents.dm
	code/modules/reagents/reagent_containers/glass.dm
	maps/tgstation2.dmm
Reapplying some fixes that I think DM may have saved over, whoops.
Adjusted process_reagents() so hydro trays are refillable with water and nurients when the tray is dead/empty.
Adjusted gas exude code.

Conflicts:
	code/game/machinery/hydroponics.dm
Added vampire HUD
Allows the insertion of pipework into walls

Pipes will be visible above the wall, allows for easier atmos repairs.
Atmos pipes installed this way can be unwrenched as normal.  Walls are
unaffected.