Added critic rating as a sort order

MediaBrowser.Model/DTO/BaseItemDto.cs

@@ -42,6 +42,18 @@ namespace MediaBrowser.Model.Dto
         /// <value>The premiere date.</value>
         public DateTime? PremiereDate { get; set; }
 
+        /// <summary>
+        /// Gets or sets the critic rating.
+        /// </summary>
+        /// <value>The critic rating.</value>
+        public float? CriticRating { get; set; }
+
+        /// <summary>
+        /// Gets or sets the critic rating summary.
+        /// </summary>
+        /// <value>The critic rating summary.</value>
+        public string CriticRatingSummary { get; set; }
+        
         /// <summary>
         /// Gets or sets the path.
         /// </summary>

MediaBrowser.Model/Entities/ItemReview.cs

@@ -29,7 +29,13 @@ namespace MediaBrowser.Model.Entities
         /// Gets or sets the score.
         /// </summary>
         /// <value>The score.</value>
-        public float Score { get; set; }
+        public float? Score { get; set; }
+
+        /// <summary>
+        /// Gets or sets a value indicating whether this <see cref="ItemReview"/> is likes.
+        /// </summary>
+        /// <value><c>null</c> if [likes] contains no value, <c>true</c> if [likes]; otherwise, <c>false</c>.</value>
+        public bool? Likes { get; set; }
 
         /// <summary>
         /// Gets or sets the URL.

MediaBrowser.Model/Querying/ItemFields.cs

@@ -21,6 +21,11 @@ namespace MediaBrowser.Model.Querying
         /// </summary>
         Chapters,
 
+        /// <summary>
+        /// The critic rating summary
+        /// </summary>
+        CriticRatingSummary,
+
         /// <summary>
         /// The date created of the item
         /// </summary>

MediaBrowser.Model/Querying/ItemSortBy.cs

@@ -62,5 +62,10 @@ namespace MediaBrowser.Model.Querying
         /// The play count
         /// </summary>
         public const string PlayCount = "PlayCount";
+        /// <summary>
+        /// The critic rating
+        /// </summary>
+        public const string CriticRating = "CriticRating";
+
     }
 }