Code Cleanup: Destroy() fixes part 1 + Misc Fixes (#1933)

In this PR:

Destroy() fixes backported from PR #1783.
JaniPDA fixes & improvements.
Chickens no longer consume their own eggs.
Language adding in setup is now 100% more sane.
Chemical dispensers now actually check that the user is still alive before renaming.
Ghosts are now marked as non-simulated atoms.
Non-simulated atoms no longer trigger proximity listeners.
Vendors no longer accept synthetic tools as stocking options.
Fixes #812.
Fixes #1877, Fixes #1929.
Fixes #1930.
Fixes #1152, Fixes #1917.
Fixes #1902.
Fixes #1165.

code/modules/reagents/dispenser/cartridge.dm

@@ -36,6 +36,13 @@
 	set category = "Object"
 	set src in view(usr, 1)
 
+	if (!ishuman(usr))
+		return
+
+	if (usr.stat)
+		usr << "You cannot do that in your current state."
+		return
+
 	setLabel(L, usr)
 
 /obj/item/weapon/reagent_containers/chem_disp_cartridge/proc/setLabel(L, mob/user = null)