add channel downloading settings

MediaBrowser.Common/Net/HttpResponseInfo.cs

@@ -15,6 +15,12 @@ namespace MediaBrowser.Common.Net
         /// <value>The type of the content.</value>
         public string ContentType { get; set; }
 
+        /// <summary>
+        /// Gets or sets the response URL.
+        /// </summary>
+        /// <value>The response URL.</value>
+        public string ResponseUrl { get; set; }
+        
         /// <summary>
         /// Gets or sets the content.
         /// </summary>