Added new api handlers to get plugin information

MediaBrowser.Model/Configuration/UserConfiguration.cs

@@ -0,0 +1,16 @@
+
+namespace MediaBrowser.Model.Configuration
+{
+    /// <summary>
+    /// This holds settings that can be personalized on a per-user, per-device basis.
+    /// </summary>
+    public class UserConfiguration
+    {
+        public int RecentItemDays { get; set; }
+
+        public UserConfiguration()
+        {
+            RecentItemDays = 14;
+        }
+    }
+}