Improve documentation on address for socket bind

sdk/lib/io/http.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // 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.
 
 part of dart.io;
 
 /**
  * HTTP status codes.
  */
 abstract class HttpStatus {
@@ skipping 44 matching lines @@
 
 
 /**
  * HTTP server.
  */
 abstract class HttpServer implements Stream<HttpRequest> {
   // TODO(ajohnsen): Document with example, once the stream API is final.
   // TODO(ajohnsen): Add HttpServer.secure.
   /**
    * Starts listening for HTTP requests on the specified [address] and
-   * [port]. If a [port] of 0 is specified the server will choose an
-   * ephemeral port. The optional argument [backlog] can be used to
-   * specify the listen backlog for the underlying OS listen
-   * setup.
+   * [port].
+   *
+   * The default value for [address] is 127.0.0.1, which will allow
+   * only incoming connections from the local host. To allow for
+   * incoming connection from the network use either the value 0.0.0.0
+   * to bind to all interfaces or the IP address of a specific
+   * interface.
+   *
+   * If [port] has the value [:0:] (the default) an ephemeral port
+   * will be chosen by the system. The actual port used can be
+   * retrieved using the [:port:] getter.
+   *
+   * The optional argument [backlog] can be used to specify the listen
+   * backlog for the underlying OS listen setup. If [backlog] has the
+   * value of [:0:] (the default) a reasonable value will be chosen by
+   * the system.
    */
   static Future<HttpServer> bind([String address = "127.0.0.1",
                                   int port = 0,
                                   int backlog = 0])
       => _HttpServer.bind(address, port, backlog);
 
   /**
    * Starts listening for HTTPS requests on the specified [address] and
    * [port]. If a [port] of 0 is specified the server will choose an
    * ephemeral port. The optional argument [backlog] can be used to
@@ skipping 1224 matching lines @@
 class RedirectLimitExceededException extends RedirectException {
   const RedirectLimitExceededException(List<RedirectInfo> redirects)
       : super("Redirect limit exceeded", redirects);
 }
 
 
 class RedirectLoopException extends RedirectException {
   const RedirectLoopException(List<RedirectInfo> redirects)
       : super("Redirect loop detected", redirects);
 }