v1.3.0

• Feature: Simplify usage by supporting new default loop.
  (#27 and #28 by @clue)

  // old (still supported)
  $proxy = new Clue\React\SshProxy\SshProcessConnector('user@example.com', $loop);
  $proxy = new Clue\React\SshProxy\SshSocksConnector('user@example.com', $loop);
  
  // new (using default loop)
  $proxy = new Clue\React\SshProxy\SshProcessConnector('user@example.com');
  $proxy = new Clue\React\SshProxy\SshSocksConnector('user@example.com');

• Documentation improvements and updated examples.
  (#25, #29 and #30 by @clue and #23 and #26 by @SimonFrings)

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