v0.5.4

• Feature: Update Socket dependency to support hosts file on all platforms
  (#108 by @clue)

  This means that HTTP requests to hosts such as localhost will now work as
  expected across all platforms with no changes required:

  $client = new Client($loop);
  $request = $client->request('GET', 'http://localhost/');
  $request->on('response', function (Response $response) {
      // …
  });
  $request->end();