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/effect_system/effects_smoke.dm

@@ -73,6 +73,8 @@
 
 /obj/effect/particle_effect/smoke/proc/spread_smoke()
 	var/turf/t_loc = get_turf(src)
+	if(!t_loc)
+		return 
 	var/list/newsmokes = list()
 	for(var/turf/T in t_loc.GetAtmosAdjacentTurfs())
 		var/obj/effect/particle_effect/smoke/foundsmoke = locate() in T //Don't spread smoke where there's already smoke!
@@ -82,7 +84,7 @@
 			smoke_mob(L)
 		var/obj/effect/particle_effect/smoke/S = new type(T)
 		reagents.copy_to(S, reagents.total_volume)
-		S.setDir(pick(cardinal))
+		S.setDir(pick(GLOB.cardinal))
 		S.amount = amount-1
 		S.add_atom_colour(color, FIXED_COLOUR_PRIORITY)
 		S.lifetime = lifetime