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/game/objects/structures/window_spawner.dm

@@ -26,7 +26,7 @@
 	return FALSE
 
 /obj/effect/wingrille_spawn/initialize()
-	..()
+	. = ..()
 	if(!win_path)
 		return
 	if(ticker && ticker.current_state < GAME_STATE_PLAYING)