2.4.0

• Added forever option to setup the forever-agent
  (to keep connections alive).
• Added gzip option to optimize network usage and speed up requests.
• Added followRedirect, followAllRedirects and maxRedirects
  options to follow HTTP 3xx responses as redirects
• Added requestOptions option, that allows to pass options
  to request module that are not covered by reqclient's options,
  like cert, key, proxy, pool, etc.
• Improved the doc, added async / await examples.
• Updated dependencies (it's not necessary to update
  dependencies in projects with oldest versions).