April sync (#360)

* Maps and things no code/icons

* helpers defines globalvars

* Onclick world.dm orphaned_procs

* subsystems

Round vote and shuttle autocall done here too

* datums

* Game folder

* Admin - chatter modules

* clothing - mining

* modular computers - zambies

* client

* mob level 1

* mob stage 2 + simple_animal

* silicons n brains

* mob stage 3 + Alien/Monkey

* human mobs

* icons updated

* some sounds

* emitter y u no commit

* update tgstation.dme

* compile fixes

* travis fixes

Also removes Fast digest mode, because reasons.

* tweaks for travis Mentors are broke again

Also fixes Sizeray guns

* oxygen loss fix for vore code.

* removes unused code

* some code updates

* bulk fixes

* further fixes

* outside things

* whoops.

* Maint bar ported

* GLOBs.

code/game/objects/effects/decals/decal.dm

@@ -10,6 +10,10 @@
 	if(!(resistance_flags & FIRE_PROOF)) //non fire proof decal or being burned by lava
 		qdel(src)
 
+/obj/effect/decal/HandleTurfChange(turf/T)
+	..()
+	if(T == loc && (isspaceturf(T) || isclosedturf(T) || islava(T) || istype(T, /turf/open/water) || istype(T, /turf/open/chasm)))
+		qdel(src)
 
 /obj/effect/turf_decal
 	var/group = TURF_DECAL_PAINT
@@ -54,4 +58,10 @@
 	icon_state = "bot"
 
 /obj/effect/turf_decal/loading_area
-	icon_state = "loading_area"
+	icon_state = "loading_area"
+
+/obj/effect/turf_decal/sand
+	icon_state = "sandyfloor"
+
+/obj/effect/turf_decal/sand/plating
+	icon_state = "sandyplating"