globally fix number parsing on non-english systems

OpenRA.Game/Support/Program.cs

@@ -20,6 +20,8 @@
 
 using System;
 using System.Diagnostics;
+using System.Globalization;
+using System.Windows.Forms;
 
 namespace OpenRA
 {
@@ -28,6 +30,9 @@ namespace OpenRA
 		[STAThread]
 		static void Main( string[] args )
 		{
+			// brutal hack
+			Application.CurrentCulture = CultureInfo.InvariantCulture;
+
 			if( Debugger.IsAttached )
 			{
 				Run( args );