- Bump SAM.Picker to .NET4.

- Improvements to downloading of game list and game icons. See #3.
- Improvements to performance of the game list. See #3.

SAM.Picker/GameInfo.cs

@@ -20,7 +20,6 @@
  *    distribution.
  */
 
-using System;
 using System.Globalization;
 using System.Windows.Forms;
 
@@ -28,7 +27,7 @@ namespace SAM.Picker
 {
     internal class GameInfo
     {
-        public long Id;
+        public uint Id;
         public string Type;
         public ListViewItem Item;
 
@@ -52,7 +51,7 @@ namespace SAM.Picker
 
         public string Logo;
 
-        public GameInfo(Int64 id, string type)
+        public GameInfo(uint id, string type)
         {
             this.Id = id;
             this.Type = type;