auto forwarding DELETE redirects

[Raynos]

We seem to have blocks on PUT and POST here

https://github.com/mikeal/request/blob/master/main.js#L339

  if (response.statusCode >= 300 &&
      response.statusCode < 400  &&
      self.followRedirect     &&
      self.method !== 'PUT' &&
      self.method !== 'POST' &&
      response.headers.location

Should we also block self.method !== 'DELETE' ?

[mikeal]

good point.

the reason we block put and post is because it could be dangerous because the request carries write consequences. DELETE does as well so we should also block it.