Access token in cookie

[darbio]

Do you have any plans to implement being able to read the access token from a http only cookie? Many people are now suggesting storing access tokens in http only cookies so that they are never exposed in the browser. Would be a good addition to this lib.

[ianstormtaylor]

I'd be open to a pull request that attempts to implement this.

[jehincastic]

I would like to work on this change and submit a pull request.