pkg/http_server: move to multi-lib layout

pkg/http_server/lib/http_server.dart

Index: pkg/http_server/lib/http_server.dart
diff --git a/pkg/http_server/lib/http_server.dart b/pkg/http_server/lib/http_server.dart
index afaf71c383b52b87717c95d9caa779c12ac04f3b..bcd99dfd81d9d86eed290048b61c4f805c7ebc4d 100644
--- a/pkg/http_server/lib/http_server.dart
+++ b/pkg/http_server/lib/http_server.dart
@@ -26,11 +26,11 @@
  * 	import 'dart:io';
  * 	import 'dart:async';
  * 	import 'package:http_server/http_server.dart';
- * 
+ *
  * 	void main() {
  * 	  var staticFiles = new VirtualDirectory('.')
  * 	    ..allowDirectoryListing = true;
- * 
+ *
  * 	  runZoned(() {
  * 	    HttpServer.bind('0.0.0.0', 7777).then((server) {
  * 	      print('Server running');
@@ -41,25 +41,25 @@
  *     }
  *
  * ## Virtual directory
- * 
+ *
  * The [VirtualDirectory] class makes it easy to serve static content
  * from the file system. It supports:
- * 
+ *
  *  *  Range-based requests.
  *  *  If-Modified-Since based caching.
  *  *  Automatic GZip-compression of content.
  *  *  Following symlinks, either throughout the system or inside
  *     a jailed root.
  *  *  Directory listing.
- * 
+ *
  * See [VirtualDirectory] for more information.
- * 
+ *
  * ## Virtual host
- * 
+ *
  * The [VirtualHost] class helps to serve multiple hosts on the same
  * address, by using the `Host` field of the incoming requests. It also
  * works with wildcards for sub-domains.
- * 
+ *
  *     var virtualHost = new VirtualHost(server);
  *     // Filter out on a specific host
  *     var stream1 = virtualServer.addHost('static.myserver.com');
@@ -67,24 +67,14 @@
  *     var stream2 = virtualServer.addHost('*.myserver.com');
  *     // Requets not matching any hosts.
  *     var stream3 = virtualServer.unhandled;
- * 
+ *
  * See [VirtualHost] for more information.
  *
  * [pub]: http://pub.dartlang.org/packages/http_server
  */
 library http_server;
 
-import 'dart:async';
-import 'dart:convert';
-import 'dart:io';
-
-import 'package:mime/mime.dart';
-import "package:path/path.dart";
-
-part 'src/http_body.dart';
-part 'src/http_body_impl.dart';
-part 'src/http_multipart_form_data.dart';
-part 'src/http_multipart_form_data_impl.dart';
-part 'src/virtual_directory.dart';
-part 'src/virtual_host.dart';
-
+export 'src/http_body.dart';
+export 'src/http_multipart_form_data.dart';
+export 'src/virtual_directory.dart';
+export 'src/virtual_host.dart';