* Electron version: 1.6.1
* Operating system: All

### Expected behavior

It should be possible, when using net.request, to set redirection options. The `ClientRequest` constructor options should contain a "redirect" attribute, with possible values "follow", "error" or "manual" (like window.fetch), and defaulting to "follow".

Also, when a redirection did happen, it should be possible to know it did, and at least get the URL to which we were redirect (for example as an attribute of IncomingMessage).

### Actual behavior

It is not possible to stop redirections from happening, or even to know that it happened and get the new URL.

### How to reproduce

Use net.request on any URL that does a redirect.

atom/browser/net/atom_url_request.cc
bool data_ended = false;
  bool data_transfer_error = false;
  do {
    if (!status.is_success()) {
      response_error = true;
      break;
    }
    if (bytes_read == 0) {
      data_ended = true;
      break;
    }
    if (bytes_read < 0 || !CopyAndPostBuffer(bytes_read)) {
      data_transfer_error = true;
      break;
    }
  } while (
      request_->Read(response_read_buffer_.get(), kBufferSize, &bytes_read));
  if (response_error) {
    DoCancelWithError(net::ErrorToString(status.ToNetError()), false);
  } else if (data_ended) {
    content::BrowserThread::PostTask(
        content::BrowserThread::UI, FROM_HERE,
        base::Bind(&AtomURLRequest::InformDelegateResponseCompleted, this));
    DoTerminate();
  } else if (data_transfer_error) {
    
    DoCancelWithError("Failed to transfer data from IO to UI thread.", false);
  }
}
void AtomURLRequest::OnContextShuttingDown() {