Replaces EXCEPTION() with stack_trace() and CRASH()

code/controllers/subsystem.dm

@@ -63,7 +63,7 @@
 //Sleeping in here prevents future fires until returned.
 /datum/controller/subsystem/proc/fire(resumed = 0)
 	flags |= SS_NO_FIRE
-	throw EXCEPTION("Subsystem [src]([type]) does not fire() but did not set the SS_NO_FIRE flag. Please add the SS_NO_FIRE flag to any subsystem that doesn't fire so it doesn't get added to the processing list and waste cpu.")
+	CRASH("Subsystem [src]([type]) does not fire() but did not set the SS_NO_FIRE flag. Please add the SS_NO_FIRE flag to any subsystem that doesn't fire so it doesn't get added to the processing list and waste cpu.")
 
 /datum/controller/subsystem/Destroy()
 	dequeue()

code/controllers/subsystem/jukeboxes.dm

@@ -83,15 +83,15 @@ SUBSYSTEM_DEF(jukeboxes)
 		return
 	for(var/list/jukeinfo in activejukeboxes)
 		if(!jukeinfo.len)
-			EXCEPTION("Active jukebox without any associated metadata.")
+			stack_trace("Active jukebox without any associated metadata.")
 			continue
 		var/datum/track/juketrack = jukeinfo[1]
 		if(!istype(juketrack))
-			EXCEPTION("Invalid jukebox track datum.")
+			stack_trace("Invalid jukebox track datum.")
 			continue
 		var/obj/jukebox = jukeinfo[3]
 		if(!istype(jukebox))
-			EXCEPTION("Nonexistant or invalid object associated with jukebox.")
+			stack_trace("Nonexistant or invalid object associated with jukebox.")
 			continue
 		var/sound/song_played = sound(juketrack.song_path)
 		var/area/currentarea = get_area(jukebox)

code/controllers/subsystem/shuttle.dm

@@ -185,14 +185,13 @@ SUBSYSTEM_DEF(shuttle)
 		WARNING("requestEvac(): There is no emergency shuttle, but the \
 			shuttle was called. Using the backup shuttle instead.")
 		if(!backup_shuttle)
-			throw EXCEPTION("requestEvac(): There is no emergency shuttle, \
+			CRASH("requestEvac(): There is no emergency shuttle, \
 			or backup shuttle! The game will be unresolvable. This is \
 			possibly a mapping error, more likely a bug with the shuttle \
 			manipulation system, or badminry. It is possible to manually \
 			resolve this problem by loading an emergency shuttle template \
 			manually, and then calling register() on the mobile docking port. \
 			Good luck.")
-			return
 		emergency = backup_shuttle
 	var/srd = CONFIG_GET(number/shuttle_refuel_delay)
 	if(world.time - SSticker.round_start_time < srd)
@@ -420,7 +419,7 @@ SUBSYSTEM_DEF(shuttle)
 
 /datum/controller/subsystem/shuttle/proc/request_transit_dock(obj/docking_port/mobile/M)
 	if(!istype(M))
-		throw EXCEPTION("[M] is not a mobile docking port")
+		CRASH("[M] is not a mobile docking port")
 
 	if(M.assigned_transit)
 		return