Added progress messaging, using info logging

Also extension methods for complete and failed (for coloured UI messaging)

NzbDrone.Api/ProgressMessaging/ProgressMessageModule.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Nancy;
+using NzbDrone.Api.Extensions;
+
+namespace NzbDrone.Api.ProgressMessaging
+{
+    public class ProgressMessageModule : NzbDroneRestModule<ProgressMessageResource>
+    {
+        public ProgressMessageModule()
+        {
+            Get["/"] = x => GetAllMessages();
+        }
+
+        private Response GetAllMessages()
+        {
+            return new List<ProgressMessageResource>().AsResponse();
+        }
+    }
+}