specify tiff mime types

MediaBrowser.Model/Dto/UserDto.cs

@@ -122,16 +122,6 @@ namespace MediaBrowser.Model.Dto
         /// <value>The primary image aspect ratio.</value>
         public double? PrimaryImageAspectRatio { get; set; }
 
-        /// <summary>
-        /// Gets a value indicating whether this instance has primary image.
-        /// </summary>
-        /// <value><c>true</c> if this instance has primary image; otherwise, <c>false</c>.</value>
-        [IgnoreDataMember]
-        public bool HasPrimaryImage
-        {
-            get { return PrimaryImageTag != null; }
-        }
-
         /// <summary>
         /// Initializes a new instance of the <see cref="UserDto"/> class.
         /// </summary>

MediaBrowser.Model/Net/MimeTypes.cs

@@ -72,6 +72,7 @@ namespace MediaBrowser.Model.Net
             dict.Add(".tbn", "image/jpeg");
             dict.Add(".png", "image/png");
             dict.Add(".gif", "image/gif");
+            dict.Add(".tiff", "image/tiff");
             dict.Add(".webp", "image/webp");
             dict.Add(".ico", "image/vnd.microsoft.icon");
             dict.Add(".mpg", "video/mpeg");