MRJ works; moved ProvidesRadar.IsActive update to Tick to avoid desync if any other actor code relies on it.

OpenRa.Game/Traits/JamsRadar.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace OpenRa.Traits
+{
+	class JamsRadarInfo : StatelessTraitInfo<JamsRadar>
+	{
+		public readonly int Range = 0;
+	}
+
+	class JamsRadar {}
+}