fixes #697 - Support xbmc offline discs

MediaBrowser.Model/Dto/BaseItemDto.cs

@@ -208,6 +208,12 @@ namespace MediaBrowser.Model.Dto
         /// <value>The players.</value>
         public int? Players { get; set; }
 
+        /// <summary>
+        /// Gets or sets a value indicating whether this instance is place holder.
+        /// </summary>
+        /// <value><c>null</c> if [is place holder] contains no value, <c>true</c> if [is place holder]; otherwise, <c>false</c>.</value>
+        public bool? IsPlaceHolder { get; set; }
+        
         /// <summary>
         /// Gets or sets the index number.
         /// </summary>

MediaBrowser.Model/Providers/RemoteSearchResult.cs

@@ -31,6 +31,8 @@ namespace MediaBrowser.Model.Providers
 
         public string SearchProviderName { get; set; }
 
+        public string GameSystem { get; set; }
+        
         public RemoteSearchResult()
         {
             ProviderIds = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);