* 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/api/atom_api_url_request.cc
#include "atom/browser/api/atom_api_url_request.h"
#include <string>
#include "atom/browser/api/atom_api_session.h"
#include "atom/browser/net/atom_url_request.h"
#include "atom/common/api/event_emitter_caller.h"
#include "atom/common/native_mate_converters/callback.h"
#include "atom/common/native_mate_converters/net_converter.h"
#include "atom/common/native_mate_converters/string16_converter.h"
#include "atom/common/node_includes.h"
#include "native_mate/dictionary.h"
namespace mate {
template <>
struct Converter<scoped_refptr<const net::IOBufferWithSize>> {
  static v8::Local<v8::Value> ToV8(
      v8::Isolate* isolate,
      scoped_refptr<const net::IOBufferWithSize> buffer) {
    return node::Buffer::Copy(isolate, buffer->data(), buffer->size())
        .ToLocalChecked();
  }
  static bool FromV8(v8::Isolate* isolate,