* 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.h
public:
    RequestState();
    bool NotStarted() const;
    bool Started() const;
    bool Finished() const;
    bool Canceled() const;
    bool Failed() const;
    bool Closed() const;
  };
  enum class ResponseStateFlags {
    kNotStarted = 0x0,
    kStarted = 0x1,
    kEnded = 0x2,
    kFailed = 0x4
  };
  class ResponseState : public StateBase<ResponseStateFlags> {
   public:
    ResponseState();
    bool NotStarted() const;
    bool Started() const;
    bool Ended() const;
    bool Canceled() const;
    bool Failed() const;
    bool Closed() const;
  };
  bool NotStarted() const;
  bool Finished() const;
  bool Canceled() const;
  bool Failed() const;