added more remote control commands

MediaBrowser.Model/ApiClient/IApiClient.cs

@@ -593,17 +593,9 @@ namespace MediaBrowser.Model.ApiClient
         /// Sends the command asynchronous.
         /// </summary>
         /// <param name="sessionId">The session identifier.</param>
-        /// <param name="request">The request.</param>
-        /// <returns>Task.</returns>
-        Task SendCommandAsync(string sessionId, GenericCommand request);
-        
-        /// <summary>
-        /// Sends a system command to the client
-        /// </summary>
-        /// <param name="sessionId">The session id.</param>
         /// <param name="command">The command.</param>
         /// <returns>Task.</returns>
-        Task SendSystemCommandAsync(string sessionId, SystemCommand command);
+        Task SendCommandAsync(string sessionId, GeneralCommand command);
 
         /// <summary>
         /// Instructs the client to display a message to the user

MediaBrowser.Model/ApiClient/IServerEvents.cs

@@ -1,4 +1,5 @@
-using System;
+using MediaBrowser.Model.Session;
+using System;
 
 namespace MediaBrowser.Model.ApiClient
 {
@@ -66,7 +67,7 @@ namespace MediaBrowser.Model.ApiClient
         /// <summary>
         /// Occurs when [system command].
         /// </summary>
-        event EventHandler<SystemCommandEventArgs> SystemCommand;
+        event EventHandler<GeneralCommandEventArgs> GeneralCommand;
         /// <summary>
         /// Occurs when [notification added].
         /// </summary>

MediaBrowser.Model/ApiClient/ServerEventArgs.cs

@@ -152,13 +152,13 @@ namespace MediaBrowser.Model.ApiClient
     /// <summary>
     /// Class SystemCommandEventArgs
     /// </summary>
-    public class SystemCommandEventArgs : EventArgs
+    public class GeneralCommandEventArgs : EventArgs
     {
         /// <summary>
         /// Gets or sets the command.
         /// </summary>
         /// <value>The command.</value>
-        public SystemCommand Command { get; set; }
+        public GeneralCommand Command { get; set; }
     }
 
     /// <summary>