added generic remote control commands

MediaBrowser.Controller/Dlna/DeviceProfile.cs

@@ -3,7 +3,6 @@ using MediaBrowser.Model.Entities;
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Runtime.Serialization;
 using System.Xml.Serialization;
 
 namespace MediaBrowser.Controller.Dlna

MediaBrowser.Controller/Dlna/TranscodingProfile.cs

@@ -18,6 +18,9 @@ namespace MediaBrowser.Controller.Dlna
         [XmlAttribute("audioCodec")]
         public string AudioCodec { get; set; }
 
+        [XmlAttribute("protocol")]
+        public string Protocol { get; set; }
+        
         [XmlAttribute("estimateContentLength")]
         public bool EstimateContentLength { get; set; }
 

MediaBrowser.Controller/Session/ISessionController.cs

@@ -59,6 +59,14 @@ namespace MediaBrowser.Controller.Session
         /// <returns>Task.</returns>
         Task SendPlaystateCommand(PlaystateRequest command, CancellationToken cancellationToken);
 
+        /// <summary>
+        /// Sends the generic command.
+        /// </summary>
+        /// <param name="command">The command.</param>
+        /// <param name="cancellationToken">The cancellation token.</param>
+        /// <returns>Task.</returns>
+        Task SendGenericCommand(GenericCommand command, CancellationToken cancellationToken);
+        
         /// <summary>
         /// Sends the library update info.
         /// </summary>