fix portable and 3.5 project references

MediaBrowser.Model/ApiClient/SessionUpdatesEventArgs.cs

@@ -0,0 +1,13 @@
+using System;
+using MediaBrowser.Model.Session;
+
+namespace MediaBrowser.Model.ApiClient
+{
+    /// <summary>
+    /// Class SessionUpdatesEventArgs
+    /// </summary>
+    public class SessionUpdatesEventArgs : EventArgs
+    {
+        public SessionInfoDto[] Sessions { get; set; }
+    }
+}