Fix Windows version detection for UTF-8 console

Built-in Environment.OSVersion does not work on Win10.

MinecraftClient/WinAPI/ConsoleIcon.cs

@@ -0,0 +1,79 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Runtime.InteropServices;
+using System.Threading;
+using System.Net;
+using System.IO;
+using System.Drawing;
+using System.Windows.Forms;
+
+namespace MinecraftClient.WinAPI
+{
+    /// <summary>
+    /// Allow to set the player skin as console icon, on Windows only.
+    /// See StackOverflow no. 2986853
+    /// </summary>
+
+    public static class ConsoleIcon
+    {
+        [DllImport("kernel32.dll", SetLastError = true)]
+        private static extern bool SetConsoleIcon(IntPtr hIcon);
+
+        /// <summary>
+        /// Asynchronously download the player's skin and set the head as console icon
+        /// </summary>
+
+        public static void setPlayerIconAsync(string playerName)
+        {
+            if (!Program.isUsingMono) //Windows Only
+            {
+                Thread t = new Thread(new ThreadStart(delegate
+                {
+                    HttpWebRequest httpWebRequest = (HttpWebRequest)HttpWebRequest.Create("http://skins.minecraft.net/MinecraftSkins/" + playerName + ".png");
+                    try
+                    {
+                        using (HttpWebResponse httpWebReponse = (HttpWebResponse)httpWebRequest.GetResponse())
+                        {
+                            try
+                            {
+                                Bitmap skin = new Bitmap(Image.FromStream(httpWebReponse.GetResponseStream())); //Read skin from network
+                                skin = skin.Clone(new Rectangle(8, 8, 8, 8), skin.PixelFormat); //Crop skin
+                                SetConsoleIcon(skin.GetHicon()); //Set skin as icon
+                            }
+                            catch (ArgumentException) { /* Invalid image in HTTP response */ }
+                        }
+                    }
+                    catch (WebException) //Skin not found? Reset to default icon
+                    {
+                        try
+                        {
+                            SetConsoleIcon(Icon.ExtractAssociatedIcon(Application.ExecutablePath).Handle);
+                        }
+                        catch { }
+                    }
+                }
+                ));
+                t.Name = "Player skin icon setter";
+                t.Start();
+            }
+        }
+
+        /// <summary>
+        /// Set the icon back to the default CMD icon
+        /// </summary>
+
+        public static void revertToCMDIcon()
+        {
+            if (!Program.isUsingMono) //Windows Only
+            {
+                try
+                {
+                    SetConsoleIcon(Icon.ExtractAssociatedIcon(Environment.SystemDirectory + "\\cmd.exe").Handle);
+                }
+                catch { }
+            }
+        }
+    }
+}