update metadata refresh

MediaBrowser.Controller/Entities/BaseItem.cs

@@ -412,6 +412,9 @@ namespace MediaBrowser.Controller.Entities
         [IgnoreDataMember]
         public DateTime DateLastRefreshed { get; set; }
 
+        [IgnoreDataMember]
+        public DateTime? DateModifiedDuringLastRefresh { get; set; }
+
         /// <summary>
         /// The logger
         /// </summary>

MediaBrowser.Controller/Entities/IHasImages.cs

@@ -1,4 +1,5 @@
-using MediaBrowser.Controller.Providers;
+using System;
+using MediaBrowser.Controller.Providers;
 using MediaBrowser.Model.Entities;
 using System.Collections.Generic;
 using System.Threading;
@@ -206,6 +207,8 @@ namespace MediaBrowser.Controller.Entities
         /// <param name="image">The image.</param>
         /// <param name="index">The index.</param>
         void SetImage(ItemImageInfo image, int index);
+
+        DateTime? DateModifiedDuringLastRefresh { get; set; }
     }
 
     public static class HasImagesExtensions

MediaBrowser.Controller/Entities/IHasMetadata.cs

@@ -25,6 +25,8 @@ namespace MediaBrowser.Controller.Entities
         /// <value>The date last saved.</value>
         DateTime DateLastSaved { get; set; }
 
+        SourceType SourceType { get; set; }
+
         /// <summary>
         /// Gets or sets the date last refreshed.
         /// </summary>