imported signalr 1.1.3 into NzbDrone.

src/Microsoft.AspNet.SignalR.Core/Infrastructure/ArraySegmentTextReader.cs

@@ -0,0 +1,33 @@
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.md in the project root for license information.
+
+using System;
+using System.IO;
+using System.Text;
+
+namespace Microsoft.AspNet.SignalR.Infrastructure
+{
+    public class ArraySegmentTextReader : TextReader
+    {
+        private readonly ArraySegment<byte> _buffer;
+        private readonly Encoding _encoding;
+        private int _offset;
+
+        public ArraySegmentTextReader(ArraySegment<byte> buffer, Encoding encoding)
+        {
+            _buffer = buffer;
+            _encoding = encoding;
+            _offset = _buffer.Offset;
+        }
+
+        public override int Read(char[] buffer, int index, int count)
+        {
+            int bytesCount = _encoding.GetByteCount(buffer, index, count);
+            int bytesToRead = Math.Min(_buffer.Count - _offset, bytesCount);
+
+            int read = _encoding.GetChars(_buffer.Array, _offset, bytesToRead, buffer, index);
+            _offset += bytesToRead;
+
+            return read;
+        }
+    }
+}