imported signalr 1.1.3 into NzbDrone.

src/Microsoft.AspNet.SignalR.Core/IGroupManager.cs

@@ -0,0 +1,28 @@
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.md in the project root for license information.
+
+using System.Threading.Tasks;
+
+namespace Microsoft.AspNet.SignalR
+{
+    /// <summary>
+    /// Manages groups for a connection.
+    /// </summary>
+    public interface IGroupManager
+    {
+        /// <summary>
+        /// Adds a connection to the specified group. 
+        /// </summary>
+        /// <param name="connectionId">The connection id to add to the group.</param>
+        /// <param name="groupName">The name of the group</param>
+        /// <returns>A task that represents the connection id being added to the group.</returns>
+        Task Add(string connectionId, string groupName);
+
+        /// <summary>
+        /// Removes a connection from the specified group.
+        /// </summary>
+        /// <param name="connectionId">The connection id to remove from the group.</param>
+        /// <param name="groupName">The name of the group</param>
+        /// <returns>A task that represents the connection id being removed from the group.</returns>
+        Task Remove(string connectionId, string groupName);
+    }
+}