Make script more compatible with older versions

Fixes #2

info.nut

@@ -3,16 +3,16 @@ class MigrationScriptInfo extends GSInfo {
 	function GetName() 		{ return "Migrations"; }
 	function GetShortName() 	{ return "MIGR"; }
 	function GetDescription() 	{ return "Town migrations"; }
-	function GetVersion() 		{ return 1; }
+	function GetVersion() 		{ return 2; }
 	function MinVersionToLoad() 	{ return 1; }
 	function GetDate() 		{ return "2018-09-13"; }
 	function UseAsRandomAI() 	{ return true; }
 	function CreateInstance() 	{ return "MigrationScript"; }
-	function GetAPIVersion() 	{ return "1.8"; }
+	function GetAPIVersion() 	{ return "1.4"; }
 	function GetURL() 		{ return "https://gitlab.com/thexa4/migrations/"; }
 
 	function GetSettings() {
-                AddSetting({name = "log_level", description = "Debug: Log level (higher = print more)", easy_value = 3, medium_value = 3, hard_value = 3, custom_value = 3, flags = CONFIG_INGAME, min_value = 1, max_value = 3});
+                AddSetting({name = "log_level", description = "Debug: Log level (higher = print more)", easy_value = 1, medium_value = 1, hard_value = 1, custom_value = 3, flags = CONFIG_INGAME, min_value = 1, max_value = 3});
                 AddLabels("log_level", {_1 = "1: Info", _2 = "2: Verbose", _3 = "3: Debug" } );
                 AddSetting({name = "city_creation_floor", description = "How hard it is for a new town to start.", easy_value = 3000, medium_value = 5000, hard_value = 7000, custom_value = 3000, flags = 0, min_value = 100, max_value = 10000});
                 AddSetting({name = "population_modifier", description = "How quickly a town grows once created.", easy_value = 10, medium_value = 8, hard_value = 5, custom_value = 10, flags = 0, min_value = 1, max_value = 100});