Handle more network exceptions gracefully

QuickPlay/Configuration.cs

@@ -95,7 +95,8 @@ namespace QuickPlay
             {
                 playercfg = await cfgProvider.GetConfigurationAsync();
             }
-            catch (Exception e) when (e is Java.Net.UnknownHostException)
+            // FIXME: These are provider-specific exceptions!
+            catch (Exception e) when (e is Java.Net.UnknownHostException || e is OperationCanceledException || e is HttpRequestException)
             {
                 var ctx = Android.App.Application.Context;
                 var t = Android.Widget.Toast.MakeText(ctx, "Could not load config:" + e.Message, Android.Widget.ToastLength.Long);