Update licence year and version

Author: cboden

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2021 Chris Boden
+Copyright (c) 2014 Chris Boden
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

src/Connector.php

@@ -134,7 +134,7 @@ protected function generateRequest($url, array $subProtocols, array $headers) {
 
         $uri = $uri->withScheme('wss' === $scheme ? 'HTTPS' : 'HTTP');
 
-        $headers += ['User-Agent' => 'Ratchet-Pawl/0.4'];
+        $headers += ['User-Agent' => 'Ratchet-Pawl/0.4.1'];
 
         $request = array_reduce(array_keys($headers), function(RequestInterface $request, $header) use ($headers) {
             return $request->withHeader($header, $headers[$header]);