Merge branch 'master' of https://github.com/SteamRE/DepotDownloader

DepotDownloader/Steam3Session.cs

@@ -335,6 +335,9 @@ namespace DepotDownloader
             bConnected = false;
             bConnecting = false;
             bAborted = true;
+
+            // flush callbacks
+            callbacks.RunCallbacks();
         }