Bump world version to remove some bug workarounds

Character.cs

@@ -787,34 +787,6 @@ public static Character LoadFromFile(BinaryReader stream)
 				newChar.Tokens.Add(Token.LoadFromFile(stream));
 			newChar.UpdateTitle();
 
-			//Fix the results of a bug that caused multiple a, ispropernamed, and culture tokens to appear, namely the above-commented.
-			//TODO: bump world version, remove that shit.
-			var a = false;
-			var p = false;
-			var c = false;
-			foreach (var token in newChar.Tokens)
-			{
-				if (token.Name == "a")
-				{
-					if (a)
-						token.Name = "__kill";
-					a = true;
-				}
-				else if (token.Name == "ispropernamed")
-				{
-					if (p)
-						token.Name = "__kill";
-					p = true;
-				}
-				else if (token.Name == "culture")
-				{
-					if (c)
-						token.Name = "__kill";
-					c = true;
-				}
-			}
-			newChar.Tokens.RemoveAll(t => t.Name == "__kill");
-
 			return newChar;
 		}
 

Game.cs

@@ -561,7 +561,7 @@ public void SaveGame(bool noPlayer = false, bool force = false, bool clear = tru
 				CurrentBoard.SaveToFile(CurrentBoard.BoardNum);
 
 			var verCheck = Path.Combine(SavePath, WorldName, "version");
-			File.WriteAllText(verCheck, "20");
+			File.WriteAllText(verCheck, "21");
 			Program.WriteLine("Done.");
 			Program.WriteLine("--------------------------");
 		}
@@ -572,7 +572,7 @@ public void LoadGame()
 			if (!File.Exists(verCheck))
 				throw new Exception("Tried to open an old worldsave.");
 			WorldVersion = int.Parse(File.ReadAllText(verCheck));
-			if (WorldVersion < 20)
+			if (WorldVersion < 21)
 				throw new Exception("Tried to open an old worldsave.");
 
 			HostForm.Clear();
@@ -604,25 +604,6 @@ public void LoadGame()
 			var currentIndex = bin.ReadInt32();
 			var boardCount = bin.ReadInt32();
 
-			//TODO: remove entirely after bumping version #
-			var poti = bin.ReadChars(4);
-			if (new string(poti) == "POTI")
-			{
-				Program.WriteLine("Ignoring POTI data...");
-				for (var i = 0; i < 256; i++)
-					bin.ReadString();
-			}
-			else
-			{
-				bin.BaseStream.Seek(-4, SeekOrigin.Current);
-			}
-			/*
-			Toolkit.ExpectFromFile(bin, "POTI", "potion and ring");
-			Potions = new string[256];
-			for (var i = 0; i < 256; i++)
-				Potions[i] = bin.ReadString();
-			*/
-
 			Toolkit.ExpectFromFile(bin, "ITID", "item identification");
 			var numIDs = bin.ReadInt32();
 			Identifications.Clear();