Miningedits (#2363)

Does some mapping stuff, re-arranges mining. Adds catwalks.
Noises the open space sprite somewhat, effect could definitely be improved.
Adds a ghosttrap to mining drones
Adds holes to holes
Fixes some of the airlocks

code/game/objects/structures/lattice.dm

@@ -49,3 +49,29 @@
 			user << "<span class='notice'>Slicing lattice joints ...</span>"
 		new /obj/item/stack/rods(src.loc)
 		qdel(src)
+	if (istype(C, /obj/item/stack/rods))
+		var/obj/item/stack/rods/R = C
+		if (R.use(2))
+			user << "<span class='notice'>Constructing catwalk ...</span>"
+			playsound(src, 'sound/weapons/Genhit.ogg', 50, 1)
+			new /obj/structure/lattice/catwalk(src.loc)
+			qdel(src)
+		return
+
+/obj/structure/lattice/catwalk
+	name = "catwalk"
+	desc = "A catwalk for easier EVA maneuvering."
+	icon = 'icons/obj/smooth/catwalk.dmi'
+	icon_state = "catwalk"
+	smooth = SMOOTH_TRUE
+	canSmoothWith = null
+
+/obj/structure/lattice/catwalk/Initialize()
+	. = ..()
+///// Z-Level Stuff
+	if(!(istype(src.loc, /turf/space) || istype(src.loc, /turf/simulated/open) || istype(src.loc, /turf/simulated/floor/asteroid)))
+///// Z-Level Stuff
+		return INITIALIZE_HINT_QDEL
+	for(var/obj/structure/lattice/catwalk/LAT in src.loc)
+		if(LAT != src)
+			qdel(LAT)

code/game/objects/structures/signs.dm

@@ -100,6 +100,11 @@
 	desc = "A warning sign which reads 'HARD VACUUM AHEAD'."
 	icon_state = "space"
 
+/obj/structure/sign/drop
+	name = "\improper DANGER! DROP HAZARD"
+	desc = "A warning sign which reads 'DANGER! DROP HAZARD'."
+	icon_state = "drop"
+
 /obj/structure/sign/deathsposal
 	name = "\improper DISPOSAL LEADS TO SPACE"
 	desc = "A warning sign which reads 'DISPOSAL LEADS TO SPACE'."

code/game/objects/structures/watercloset.dm

@@ -12,7 +12,8 @@
 	var/w_items = 0			//the combined w_class of all the items in the cistern
 	var/mob/living/swirlie = null	//the mob being given a swirlie
 
-/obj/structure/toilet/New()
+/obj/structure/toilet/Initialize()
+	. = ..()
 	open = round(rand(0, 1))
 	update_icon()
 
@@ -91,7 +92,14 @@
 		user << "You carefully place \the [I] into the cistern."
 		return
 
+/obj/structure/toilet/noose
+	desc = "The HT-451, a torque rotation-based, waste disposal unit for small matter. This one's cistern seems remarkably scratched."
 
+/obj/structure/toilet/noose/Initialize()
+	. = ..()
+	new /obj/item/stack/cable_coil(src)
+	if(prob(5))
+		cistern = 1
 
 /obj/structure/urinal
 	name = "urinal"