v0.4.0

• Feature: Add streaming API for fetching larger files
  (#20 by @clue)

  $stream = $client->fetchFileStream($path);
  
  $stream->on('data', function ($chunk) {
      echo $chunk;
  });
  
  $stream->on('error', function (Exception $error) {
      echo 'Error: ' . $error->getMessage() . PHP_EOL;
  });
  
  $stream->on('close', function () {
      echo '[DONE]' . PHP_EOL;
  });

• Update dependencies, more SOLID code base