Changed SteamUser.LoggedOffCallback to expose the Steam2Ticket directly, instead of the data.

Added various bits of XML documentation.

DepotDownloader/ContentDownloader.cs

@@ -318,7 +318,7 @@ namespace DepotDownloader
 
             return new ContentServerClient.Credentials()
             {
-                Steam2Ticket =  new Steam2Ticket(steam3Credentials.Steam2Ticket),
+                Steam2Ticket = steam3Credentials.Steam2Ticket,
                 AppTicket = steam3.AppTickets[appId],
                 SessionToken = steam3Credentials.SessionToken,
             };
@@ -513,16 +513,14 @@ namespace DepotDownloader
                 return;
             }
 
-            byte[] manifest = cdnClient.DownloadDepotManifest(depotId, depot_manifest);
+            DepotManifest depotManifest = cdnClient.DownloadDepotManifest( depotId, depot_manifest );
 
-            if (manifest == null)
+            if ( depotManifest == null )
             {
                 Console.WriteLine( "\nUnable to download manifest {0} for depot {1}", depot_manifest, depotId );
                 return;
             }
 
-            DepotManifest depotManifest = new DepotManifest(manifest);
-
             if (!depotManifest.DecryptFilenames(depotKey))
             {
                 Console.WriteLine("\nUnable to decrypt manifest for depot {0}", depotId);

DepotDownloader/Steam3Session.cs

@@ -15,7 +15,7 @@ namespace DepotDownloader
         public class Credentials
         {
             public ulong SessionToken { get; set; }
-            public byte[] Steam2Ticket { get; set; }
+            public Steam2Ticket Steam2Ticket { get; set; }
 
             public bool IsValid
             {