boxset image fixes

MediaBrowser.Controller/Entities/BaseItem.cs

@@ -342,6 +342,9 @@ namespace MediaBrowser.Controller.Entities
 
         public DateTime DateLastSaved { get; set; }
 
+        [IgnoreDataMember]
+        public DateTime DateLastRefreshed { get; set; }
+
         /// <summary>
         /// The logger
         /// </summary>

MediaBrowser.Controller/Entities/IHasMetadata.cs

@@ -30,6 +30,12 @@ namespace MediaBrowser.Controller.Entities
         /// <value>The date last saved.</value>
         DateTime DateLastSaved { get; set; }
 
+        /// <summary>
+        /// Gets or sets the date last refreshed.
+        /// </summary>
+        /// <value>The date last refreshed.</value>
+        DateTime DateLastRefreshed { get; set; }
+        
         /// <summary>
         /// Updates to repository.
         /// </summary>

MediaBrowser.Controller/Providers/ImageRefreshMode.cs

@@ -7,15 +7,15 @@ namespace MediaBrowser.Controller.Providers
         /// </summary>
         None = 0,
 
-        /// <summary>
-        /// The default
-        /// </summary>
-        Default = 1,
-
         /// <summary>
         /// Existing images will be validated
         /// </summary>
-        ValidationOnly = 2,
+        ValidationOnly = 1,
+
+        /// <summary>
+        /// The default
+        /// </summary>
+        Default = 2,
 
         /// <summary>
         /// All providers will be executed to search for new metadata