* 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
public:
  explicit UploadOwnedIOBufferElementReader(
      scoped_refptr<const net::IOBufferWithSize> buffer)
      : net::UploadBytesElementReader(buffer->data(), buffer->size()),
        buffer_(buffer) {}
  ~UploadOwnedIOBufferElementReader() override {}
  static UploadOwnedIOBufferElementReader* CreateWithBuffer(
      scoped_refptr<const net::IOBufferWithSize> buffer) {
    return new UploadOwnedIOBufferElementReader(std::move(buffer));
  }
 private:
  scoped_refptr<const net::IOBuffer> buffer_;
  DISALLOW_COPY_AND_ASSIGN(UploadOwnedIOBufferElementReader);
};
}  
AtomURLRequest::AtomURLRequest(api::URLRequest* delegate)
    : delegate_(delegate),
      is_chunked_upload_(false),
      response_read_buffer_(new net::IOBuffer(kBufferSize)) {}
AtomURLRequest::~AtomURLRequest() {