Update every initialize() proc to return an initialize hint.

* Yes, all of them.
* Also did a few corrections to redundant New() and broken Destroy() along the way
* Renamed the turf_initializer.initialize() proc to InitializeTurf to avoid confusion.
* Subsumed /area/proc/initialize into /atom/proc/initialize() - Made /area's LateInitialize to get same behavior as before.

code/modules/power/singularity/emitter.dm

@@ -42,7 +42,7 @@
 	return 1
 
 /obj/machinery/power/emitter/initialize()
-	..()
+	. = ..()
 	if(state == 2 && anchored)
 		connect_to_network()