imported signalr 1.1.3 into NzbDrone.

src/Microsoft.AspNet.SignalR.Owin/Infrastructure/ParamDictionary.cs

@@ -0,0 +1,35 @@
+// 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;
+using System.Diagnostics.CodeAnalysis;
+using Microsoft.AspNet.SignalR.Infrastructure;
+
+namespace Microsoft.AspNet.SignalR.Owin.Infrastructure
+{
+    [SuppressMessage("Microsoft.Performance", "CA1812:AvoidUninstantiatedInternalClasses", Justification = "It is instantiated in the static Parse method")]
+    internal sealed class ParamDictionary
+    {
+        private static readonly char[] DefaultParamSeparators = new[] { '&', ';' };
+        private static readonly char[] ParamKeyValueSeparator = new[] { '=' };
+        private static readonly char[] LeadingWhitespaceChars = new[] { ' ' };
+
+        internal static IEnumerable<KeyValuePair<string, string>> ParseToEnumerable(string value, char[] delimiters = null)
+        {
+            value = value ?? String.Empty;
+            delimiters = delimiters ?? DefaultParamSeparators;
+
+            var items = value.Split(delimiters, StringSplitOptions.RemoveEmptyEntries);
+
+            foreach (var item in items)
+            {
+                string[] pair = item.Split(ParamKeyValueSeparator, 2, StringSplitOptions.None);
+
+                string pairKey = UrlDecoder.UrlDecode(pair[0]).TrimStart(LeadingWhitespaceChars);
+                string pairValue = pair.Length < 2 ? String.Empty : UrlDecoder.UrlDecode(pair[1]);
+
+                yield return new KeyValuePair<string, string>(pairKey, pairValue);
+            }
+        }
+    }
+}