First push of a new 'http_server' dart package.

pkg/http_server/lib/http_server.dart

Index: pkg/http_server/lib/http_server.dart
diff --git a/tests/language/reexport_core_helper.dart b/pkg/http_server/lib/http_server.dart
similarity index 74%
copy from tests/language/reexport_core_helper.dart
copy to pkg/http_server/lib/http_server.dart
index 49798aa483b6602490991fcd368dda37d9566f20..7973d7400840760e9301dd7b62d0a7e60a891235 100644
--- a/tests/language/reexport_core_helper.dart
+++ b/pkg/http_server/lib/http_server.dart
@@ -2,7 +2,9 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-library reexport_core_helper;
+library http_server;
 
-export 'dart:core';
+import 'dart:io';
+
+part 'src/virtual_directory.dart';