Refactored scripts, added a smoother for Debug Islan

I've added a simple edge-smoothing function to debug island's generator. It
doesn't handle all edge cases (pun intended), but the proof of concept is
sound. I just wish I could release this...

I've also added exception checks to region.cpp

rsc/scripts/map_saver.lua

@@ -1,11 +1,15 @@
+local Region = require("map_system").Region
+
 local mapSaver = {}
-function mapSaver.Load(region)
+
+function mapSaver.Load(r)
 	--empty
-	print("map_saver.lua:mapSaver.Load(region)")
+	io.write("map_saver:Load(", Region.GetX(r), ", ", Region.GetY(r), ")\n")
 end
-function mapSaver.Save(region)
+function mapSaver.Save(r)
 	--empty
-	print("map_saver.lua:mapSaver.Save(region)")
+	io.write("map_saver:Save(", Region.GetX(r), ", ", Region.GetY(r), ")\n")
 end
+
 --TODO: create a flexible saving & loading system
 return mapSaver