Ensure connection is closed on HTTPServer redirect

- Avoid Kodi VideoPlayer timeout when trying to close
- Follow up to 88dfa60
- HTTP/1.1 default to keep-alive

resources/lib/youtube_plugin/kodion/network/http_server.py

@@ -226,6 +226,7 @@ def do_GET(self):
                 wait(1)
                 self.send_response(301)
                 self.send_header('Location', url)
+                self.send_header('Connection', 'close')
                 self.end_headers()
             else:
                 self.send_error(501)