v0.5.0

• Feature / BC break: Implement PSR-7 http-message interfaces
  (#54 by @clue)

  Replace custom Message, Request, Response and Uri classes with
  common PSR-7 interfaces:

  // old
  $browser->get($uri)->then(function (Response $response) {
      echo 'Test: ' . $response->getHeader('X-Test');
      echo 'Body: ' . $response->getBody();
  });
  
  // new
  $browser->get($uri)->then(function (ResponseInterface $response) {
      if ($response->hasHeader('X-Test')) {
          echo 'Test: ' . $response->getHeaderLine('X-Test');
      }
      echo 'Body: ' . $response->getBody();
  });

• Feature: Add streaming API
  (#56 by @clue)

  $browser = $browser->withOptions(array('streaming' => true));
  $browser->get($uri)->then(function (ResponseInterface $response) {
      $response->getBody()->on('data', function($chunk) {
          echo $chunk . PHP_EOL;
      });
  });

• Remove / BC break: Remove Browser::resolve() because it's now fully decoupled
  (#55 by @clue)

  If you need this feature, consider explicitly depending on rize/uri-template
  instead:

  $ composer require rize/uri-template

• Use clue/block-react and new Promise API in order to simplify tests
  (#53 by @clue)