tightened up image saving to reduce knowledge of file names

MediaBrowser.Common/Net/IHttpClient.cs

@@ -11,6 +11,13 @@ namespace MediaBrowser.Common.Net
     /// </summary>
     public interface IHttpClient : IDisposable
     {
+        /// <summary>
+        /// Gets the response.
+        /// </summary>
+        /// <param name="options">The options.</param>
+        /// <returns>Task{HttpResponseInfo}.</returns>
+        Task<HttpResponseInfo> GetResponse(HttpRequestOptions options);
+
         /// <summary>
         /// Performs a GET request and returns the resulting stream
         /// </summary>