a bit of cleanup

OpenRA.Mods.RA/Activities/LayMines.cs

@@ -9,9 +9,9 @@
 #endregion
 
 using System.Linq;
+using OpenRA.FileFormats;
 using OpenRA.Traits;
 using OpenRA.Traits.Activities;
-using OpenRA.FileFormats;
 
 namespace OpenRA.Mods.RA.Activities
 {

OpenRA.Mods.RA/HackyAI.cs

@@ -1,8 +1,17 @@
-using System.Linq;
-using OpenRA.Traits;
+#region Copyright & License Information
+/*
+ * Copyright 2007-2010 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made 
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation. For more information,
+ * see LICENSE.
+ */
+#endregion
+
 using System;
 using System.Collections.Generic;
-
+using System.Linq;
+using OpenRA.Traits;
 using XRandom = OpenRA.Thirdparty.Random;
 
 

OpenRA.Mods.RA/TargetableCloaked.cs

@@ -8,9 +8,6 @@
  */
 #endregion
 
-using System.Drawing;
-using OpenRA.Graphics;
-using System.Linq;
 using OpenRA.Traits;
 
 namespace OpenRA.Mods.RA