Add missing OWIN NuGet package. References #69

Author: Daniel15

build.proj

@@ -31,6 +31,7 @@ of patent rights can be found in the PATENTS file in the same directory.
 		<PackageAssemblies Include="System.Web.Optimization.React" />
 		<PackageAssemblies Include="Cassette.React" />
 		<PackageAssemblies Include="React.MSBuild" />
+		<PackageAssemblies Include="React.Owin" />
 		<PackageAssembliesAspNet5 Include="React.AspNet" />
 		<AspNet5ProjectJson Include="src/**/project.json" />
 	</ItemGroup>

src/React.Owin/React.Owin.nutrans

@@ -0,0 +1,19 @@
+<?xml version="1.0"?>
+<!--
+Copyright (c) 2015, Facebook, Inc.
+All rights reserved.
+
+This source code is licensed under the BSD-style license found in the
+LICENSE file in the root directory of this source tree. An additional grant
+of patent rights can be found in the PATENTS file in the same directory.
+-->
+<package 
+	xmlns="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd" 
+	xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
+	<metadata>
+		<id xdt:Transform="Replace">React.Owin</id>
+		<title xdt:Transform="Insert">ReactJS.NET - JSX for OWIN</title>
+		<description xdt:Transform="Insert">Allows you to compile JSX to JavaScript via OWIN middleware</description>
+		<tags xdt:Transform="Replace">asp.net mvc asp jquery javascript js react facebook reactjs owin</tags>
+	</metadata>
+</package>