ExternalNotifications enabled (Xbmc only right now).

- Grab, Download, Rename
Notification Settings for Xbmc uses definitions.

NzbDrone.Core/Providers/ExternalNotification/ExternalNotificationBase.cs

@@ -0,0 +1,45 @@
+using System;
+using NLog;
+using NzbDrone.Core.Model;
+using NzbDrone.Core.Providers.Core;
+using NzbDrone.Core.Repository;
+
+namespace NzbDrone.Core.Providers.ExternalNotification
+{
+    public abstract class ExternalNotificationBase
+    {
+        protected readonly Logger _logger;
+        protected readonly ConfigProvider _configProvider;
+
+        protected ExternalNotificationBase(ConfigProvider configProvider)
+        {
+            _configProvider = configProvider;
+            _logger = LogManager.GetLogger(GetType().ToString());
+        }
+
+        /// <summary>
+        ///   Gets the name for the notification provider
+        /// </summary>
+        public abstract string Name { get; }
+
+        /// <summary>
+        ///   Performs the on grab action
+        /// </summary>
+        /// <param name = "message">The message to send to the receiver</param>
+        public abstract void OnGrab(string message);
+
+        /// <summary>
+        ///   Performs the on download action
+        /// </summary>
+        /// <param name = "message">The message to send to the receiver</param>
+        /// <param name = "series">The Series for the new download</param>
+        public abstract void OnDownload(string message, Series series);
+
+        /// <summary>
+        ///   Performs the on rename action
+        /// </summary>
+        /// <param name = "message">The message to send to the receiver</param>
+        /// <param name = "series">The Series for the new download</param>
+        public abstract void OnRename(string message, Series series);
+    }
+}