[MIRROR] (Hopefully) Lessens preferences and manifest injection lag (#2796)

* (Hopefully) Lessens preferences and manifest injection lag

* Update datacore.dm

* Update preferences_setup.dm

code/controllers/subsystem/ticker.dm

@@ -243,10 +243,10 @@ SUBSYSTEM_DEF(ticker)
 
 	PostSetup()
 
-	return 1
+	return TRUE
 
 /datum/controller/subsystem/ticker/proc/PostSetup()
-	set waitfor = 0
+	set waitfor = FALSE
 	mode.post_setup()
 	GLOB.start_state = new /datum/station_state()
 	GLOB.start_state.count(1)