trim down license spam in all files

OpenRA.TilesetBuilder/Program.cs

@@ -1,5 +1,14 @@
-using System;
-using System.Collections.Generic;
+#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.Linq;
 using System.Windows.Forms;
 
@@ -7,9 +16,6 @@ namespace OpenRA.TilesetBuilder
 {
 	static class Program
 	{
-		/// <summary>
-		/// The main entry point for the application.
-		/// </summary>
 		[STAThread]
 		static void Main(string[] args)
 		{