React to Http namespace changes.

src/Microsoft.AspNet.Authentication.Facebook/FacebookAuthenticationHandler.cs

@@ -10,8 +10,8 @@ using System.Text;
 using System.Threading.Tasks;
 using Microsoft.AspNet.Authentication.OAuth;
 using Microsoft.AspNet.Http.Authentication;
-using Microsoft.AspNet.Http.Collections;
 using Microsoft.AspNet.Http.Extensions;
+using Microsoft.AspNet.Http.Internal;
 using Microsoft.AspNet.WebUtilities;
 using Newtonsoft.Json.Linq;
 

src/Microsoft.AspNet.Authentication.Twitter/TwitterAuthenticationHandler.cs

@@ -9,10 +9,10 @@ using System.Security.Claims;
 using System.Security.Cryptography;
 using System.Text;
 using System.Threading.Tasks;
-using Microsoft.AspNet.Http;
-using Microsoft.AspNet.Http.Collections;
-using Microsoft.AspNet.Http.Authentication;
 using Microsoft.AspNet.Authentication.Twitter.Messages;
+using Microsoft.AspNet.Http;
+using Microsoft.AspNet.Http.Authentication;
+using Microsoft.AspNet.Http.Internal;
 using Microsoft.AspNet.WebUtilities;
 using Microsoft.Framework.Logging;
 

src/Microsoft.AspNet.Authentication/AuthenticationHandler.cs

@@ -8,6 +8,7 @@ using System.Threading.Tasks;
 using Microsoft.AspNet.Authentication.DataHandler.Encoder;
 using Microsoft.AspNet.Http;
 using Microsoft.AspNet.Http.Authentication;
+using Microsoft.AspNet.Http.Features.Authentication;
 using Microsoft.Framework.Internal;
 using Microsoft.Framework.Logging;
 using Microsoft.Framework.WebEncoders;

src/Microsoft.AspNet.Authentication/ClaimsTransformationAuthenticationHandler.cs

@@ -4,7 +4,7 @@
 using System;
 using System.Security.Claims;
 using System.Threading.Tasks;
-using Microsoft.AspNet.Http.Authentication;
+using Microsoft.AspNet.Http.Features.Authentication;
 
 namespace Microsoft.AspNet.Authentication
 {

src/Microsoft.AspNet.Authentication/HttpContextExtensions.cs

@@ -2,7 +2,8 @@
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using Microsoft.AspNet.Http;
-using Microsoft.AspNet.Http.Authentication;
+using Microsoft.AspNet.Http.Features.Authentication;
+using Microsoft.AspNet.Http.Features.Authentication.Internal;
 
 namespace Microsoft.AspNet.Authentication
 {

test/Microsoft.AspNet.Authentication.Test/AuthenticationHandlerFacts.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.Internal;
 using Microsoft.Framework.Logging;
 using Xunit;
 

test/Microsoft.AspNet.Authentication.Test/Cookies/Infrastructure/CookieChunkingTests.cs

@@ -4,6 +4,7 @@
 using System;
 using System.Collections.Generic;
 using Microsoft.AspNet.Http;
+using Microsoft.AspNet.Http.Internal;
 using Xunit;
 
 namespace Microsoft.AspNet.Authentication.Cookies.Infrastructure

test/Microsoft.AspNet.Authentication.Test/OpenIdConnect/OpenIdConnectHandlerTests.cs

@@ -8,7 +8,6 @@
 using System;
 using System.Collections.Generic;
 using System.Net.Http;
-using System.Security.Claims;
 using System.Threading.Tasks;
 using Microsoft.AspNet.Authentication.Notifications;
 using Microsoft.AspNet.Authentication.OpenIdConnect;
@@ -16,6 +15,7 @@ using Microsoft.AspNet.Builder;
 using Microsoft.AspNet.DataProtection;
 using Microsoft.AspNet.Http;
 using Microsoft.AspNet.Http.Authentication;
+using Microsoft.AspNet.Http.Features.Authentication;
 using Microsoft.AspNet.TestHost;
 using Microsoft.Framework.DependencyInjection;
 using Microsoft.Framework.Logging;

test/Microsoft.AspNet.Authentication.Test/SecurityHelperTests.cs

@@ -4,7 +4,7 @@
 using System.Linq;
 using System.Security.Claims;
 using System.Security.Principal;
-using Microsoft.AspNet.Http;
+using Microsoft.AspNet.Http.Internal;
 using Shouldly;
 using Xunit;