moved Game.PathFinder into World

OpenRa.Game/World.cs

@@ -16,6 +16,8 @@ namespace OpenRa
 		public readonly BuildingInfluenceMap BuildingInfluence;
 		public readonly UnitInfluenceMap UnitInfluence;
 
+		public readonly PathFinder PathFinder;
+
 		public readonly Map Map;
 		public readonly TileSet TileSet;
 
@@ -37,6 +39,8 @@ namespace OpenRa
 			oreTicks = oreFrequency;
 			Map.InitOreDensity();
 
+			PathFinder = new PathFinder(this);
+
 			CreateActor("World", new int2(int.MaxValue, int.MaxValue), null);
 
 			WorldRenderer = new WorldRenderer(this, Game.renderer);