imported signalr 1.1.3 into NzbDrone.

src/Microsoft.AspNet.SignalR.Core/Messaging/LocalEventKeyInfo.cs

@@ -0,0 +1,30 @@
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.md in the project root for license information.
+
+using System;
+using System.Collections.Generic;
+
+namespace Microsoft.AspNet.SignalR.Messaging
+{
+    public class LocalEventKeyInfo
+    {
+        private readonly WeakReference _storeReference;
+
+        public LocalEventKeyInfo(string key, ulong id, MessageStore<Message> store)
+        {
+            // Don't hold onto MessageStores that would otherwise be GC'd
+            _storeReference = new WeakReference(store);
+            Key = key;
+            Id = id;
+        }
+
+        public string Key { get; private set; }
+        public ulong Id { get; private set; }
+        public MessageStore<Message> MessageStore
+        {
+            get
+            {
+                return _storeReference.Target as MessageStore<Message>;
+            }
+        }
+    }
+}