v1.3.0

• Feature: Simplify usage by supporting new default loop and making Connector optional.
  (#100 and #101 by @clue)

  // old (still supported)
  $proxy = new Clue\React\Socks\Client(
      $url,
      new React\Socket\Connector($loop)
  );
  $server = new Clue\React\Socks\Server($loop);
  $server->listen(new React\Socket\Server('127.0.0.1:1080', $loop));
  
  // new (using default loop)
  $proxy = new Clue\React\Socks\Client('127.0.0.1:1080');
  $socks = new Clue\React\Socks\Server();
  $socks->listen(new React\Socket\SocketServer('127.0.0.1:1080'));

• Documentation improvements and updated examples.
  (#98 and #102 by @clue and #99 by @PaulRotmann)

• Improve test suite and use GitHub actions for continuous integration (CI).
  (#97 by @SimonFrings)