fixed harvester LMB lameness; fixed ore rate

OpenRa.Game/Game.cs

@@ -138,7 +138,7 @@ namespace OpenRa.Game
 			lastTime = Environment.TickCount;
 		}
 
-		const int oreFrequency = 1;
+		const int oreFrequency = 30;
 		static int oreTicks = oreFrequency;
 		public static int RenderFrame = 0;
 		public static double RenderTime = 0.0;

OpenRa.Game/Traits/Harvester.cs

@@ -22,6 +22,8 @@ namespace OpenRa.Game.Traits
 
 		public Order Order(Actor self, int2 xy, bool lmb, Actor underCursor)
 		{
+			if (lmb) return null;
+
 			if (underCursor != null 
 				&& underCursor.Owner == self.Owner 
 				&& underCursor.traits.Contains<AcceptsOre>() && !IsEmpty)