Merge pull request #2936 from anthonylavado/fix-etags-right

Remove JsonIgnore from the DateLastSaved property of BaseItem

(cherry picked from commit 2f6dd258e651dae7b2efaf46721461db3a6d0ff0)
Signed-off-by: Joshua M. Boniface <joshua@boniface.me>

MediaBrowser.Controller/Entities/BaseItem.cs

@@ -550,7 +550,6 @@ namespace MediaBrowser.Controller.Entities
         [JsonIgnore]
         public DateTime DateModified { get; set; }
 
-        [JsonIgnore]
         public DateTime DateLastSaved { get; set; }
 
         [JsonIgnore]