pkg/http_server: move to multi-lib layout

pkg/http_server/README.md

Index: pkg/http_server/README.md
diff --git a/pkg/http_server/README.md b/pkg/http_server/README.md
index f0b90f4588a82cbcc2b428729560feec82438ce2..e428814ae3c5282d66d0fadf8f0caceaaefc7a3a 100644
--- a/pkg/http_server/README.md
+++ b/pkg/http_server/README.md
@@ -1,19 +1,12 @@
-# http_server
+A set of high-level classes that, together with
+`HttpServer`, makes is easier to serve web content.
 
-This package contains a set of high-level classes that, together with
-HttpServer, makes is easy to provide content through HTTP servers.
-
-**NOTE:** This package currently only works for
-server-side or command-line Dart applications. In other words, if the app
-imports `dart:io`, it can use this package.
-
-## Using
-
-Please see the [API docs][docs] for explanations and examples.
+**NOTE:** This package only works for server-side or command-line Dart 
+applications. In other words, if the app imports `dart:io`, it can use this 
+package.
 
 ## Filing issues
 
-Please file issues for the http package at [http://dartbug.com/new][bugs].
+File issues for the `http_server` package at [http://dartbug.com/new][bugs].
 
 [bugs]: http://dartbug.com/new
-[docs]: https://api.dartlang.org/docs/channels/stable/latest/http_server.html