small tweak to HttpUtil - we don't support 1.1, so dont pretend we do; also, set WebClient.Proxy everywhere to null

OpenRA.FileFormats/HttpUtil.cs

@@ -29,7 +29,7 @@ namespace OpenRA.FileFormats
 				var ns = s.GetStream();
 				var sw = new StreamWriter(ns);
 
-				sw.Write("GET {0} HTTP/1.1\r\nHost:{1}\r\n\r\n", uri.PathAndQuery, uri.Host);
+				sw.Write("GET {0} HTTP/1.0\r\nHost:{1}\r\n\r\n", uri.PathAndQuery, uri.Host);
 				sw.Flush();
 
 				var br = new BinaryReader(ns);

OpenRA.Game/Server/MasterServerQuery.cs

@@ -62,6 +62,7 @@ namespace OpenRA.Server
 		static string GetData(Uri uri)
 		{
 			var wc = new WebClient();
+			wc.Proxy = null;
 			var data = wc.DownloadData(uri);
 			return Encoding.UTF8.GetString(data);
 		}

OpenRA.Mods.RA/ServerTraits/MasterServerPinger.cs

@@ -61,6 +61,7 @@ namespace OpenRA.Mods.RA.Server
 
 						using (var wc = new WebClient())
 						{
+							wc.Proxy = null;
 							wc.DownloadData(
 							   masterServerUrl + url.F(
 							   externalPort, Uri.EscapeUriString(server.Name),

OpenRA.Utility/Command.cs

@@ -118,11 +118,11 @@ namespace OpenRA.Utility
 			string[] args = argValue.Split(',');
 			string url = args[0];
 			WebClient wc = new WebClient();
+			wc.Proxy = null;
 
 			if (args.Length == 1)
 			{
 				wc.DownloadStringCompleted += DownloadStringCompleted;
-				
 				wc.DownloadStringAsync(new Uri(url));
 			}
 			else if (args.Length == 2)