basic Sync checking. No protocol stuff yet; just checks that input events are well-behaved.

OpenRa.Game/Chrome.cs

@@ -414,7 +414,7 @@ namespace OpenRa.Game
 				shpRenderer.Flush();
 			}
 		}
-
+
 		void DrawChat()
 		{
 			var chatpos = new int2(400, Game.viewport.Height - 20);