React to Http namespace changes.

src/Microsoft.AspNet.Hosting/Builder/ApplicationBuilderFactory.cs

@@ -3,6 +3,7 @@
 
 using System;
 using Microsoft.AspNet.Builder;
+using Microsoft.AspNet.Builder.Internal;
 
 namespace Microsoft.AspNet.Hosting.Builder
 {

src/Microsoft.AspNet.Hosting/Builder/HttpContextFactory.cs

@@ -3,6 +3,7 @@
 
 using Microsoft.AspNet.FeatureModel;
 using Microsoft.AspNet.Http;
+using Microsoft.AspNet.Http.Internal;
 
 namespace Microsoft.AspNet.Hosting.Builder
 {

src/Microsoft.AspNet.Hosting/DefaultRequestIdentifierFeature.cs

@@ -2,7 +2,7 @@
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
-using Microsoft.AspNet.Http;
+using Microsoft.AspNet.Http.Features;
 
 namespace Microsoft.AspNet.Hosting
 {

src/Microsoft.AspNet.Hosting/Internal/HostingEngine.cs

@@ -10,6 +10,7 @@ using Microsoft.AspNet.Hosting.Builder;
 using Microsoft.AspNet.Hosting.Server;
 using Microsoft.AspNet.Hosting.Startup;
 using Microsoft.AspNet.Http;
+using Microsoft.AspNet.Http.Features;
 using Microsoft.Framework.ConfigurationModel;
 using Microsoft.Framework.DependencyInjection;
 using Microsoft.Framework.Internal;

src/Microsoft.AspNet.TestHost/ClientHandler.cs

@@ -12,6 +12,8 @@ using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.AspNet.FeatureModel;
 using Microsoft.AspNet.Http;
+using Microsoft.AspNet.Http.Features;
+using Microsoft.AspNet.Http.Internal;
 using Microsoft.Framework.Internal;
 
 namespace Microsoft.AspNet.TestHost

src/Microsoft.AspNet.TestHost/RequestFeature.cs

@@ -4,7 +4,7 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
-using Microsoft.AspNet.Http;
+using Microsoft.AspNet.Http.Features;
 
 namespace Microsoft.AspNet.TestHost
 {

src/Microsoft.AspNet.TestHost/ResponseFeature.cs

@@ -4,7 +4,7 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
-using Microsoft.AspNet.Http;
+using Microsoft.AspNet.Http.Features;
 
 namespace Microsoft.AspNet.TestHost
 {

test/Microsoft.AspNet.Hosting.Tests/HostingEngineTests.cs

@@ -12,6 +12,7 @@ using Microsoft.AspNet.Hosting.Internal;
 using Microsoft.AspNet.Hosting.Server;
 using Microsoft.AspNet.Hosting.Startup;
 using Microsoft.AspNet.Http;
+using Microsoft.AspNet.Http.Features;
 using Microsoft.AspNet.Testing.xunit;
 using Microsoft.Framework.ConfigurationModel;
 using Microsoft.Framework.DependencyInjection;

test/Microsoft.AspNet.Hosting.Tests/StartupManagerTests.cs

@@ -5,6 +5,7 @@ using System;
 using System.Collections.Generic;
 using System.Reflection;
 using Microsoft.AspNet.Builder;
+using Microsoft.AspNet.Builder.Internal;
 using Microsoft.AspNet.Hosting.Fakes;
 using Microsoft.AspNet.Hosting.Startup;
 using Microsoft.Framework.DependencyInjection;

test/Microsoft.AspNet.TestHost.Tests/ClientHandlerTests.cs

@@ -9,6 +9,8 @@ using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.AspNet.FeatureModel;
 using Microsoft.AspNet.Http;
+using Microsoft.AspNet.Http.Features;
+using Microsoft.AspNet.Http.Internal;
 using Xunit;
 
 namespace Microsoft.AspNet.TestHost