added user data save reason

MediaBrowser.ServerApplication/ApplicationHost.cs

@@ -672,6 +672,11 @@ namespace MediaBrowser.ServerApplication
             OnApplicationUpdated(package.version);
         }
 
+        /// <summary>
+        /// Creates the HTTP client.
+        /// </summary>
+        /// <param name="enableHttpCompression">if set to <c>true</c> [enable HTTP compression].</param>
+        /// <returns>HttpClient.</returns>
         protected override HttpClient CreateHttpClient(bool enableHttpCompression)
         {
             return HttpClientFactory.GetHttpClient(enableHttpCompression);