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/controllers/subsystem/assets.dm

@@ -1,19 +1,14 @@
-var/datum/controller/subsystem/assets/SSasset
-
-/datum/controller/subsystem/assets
+SUBSYSTEM_DEF(assets)
 	name = "Assets"
 	init_order = -3
 	flags = SS_NO_FIRE
 	var/list/cache = list()
 
-/datum/controller/subsystem/assets/New()
-	NEW_SS_GLOBAL(SSasset)
-
 /datum/controller/subsystem/assets/Initialize(timeofday)
 	for(var/type in typesof(/datum/asset) - list(/datum/asset, /datum/asset/simple))
 		var/datum/asset/A = new type()
 		A.register()
 
-	for(var/client/C in clients)
+	for(var/client/C in GLOB.clients)
 		addtimer(CALLBACK(GLOBAL_PROC, .proc/getFilesSlow, C, cache, FALSE), 10)
 	..()