Update example/config.ru to use the renamed provider name
Merge pull request #9 from jrichardlai/master

Update example/config.ru to use the renamed provider name
Fixes issue with query params vs. post body: http://developer.linkedin.com/forum/unauthorized-invalid-or-expired-token-immediately-after-receiving-oauth2-token
Merge pull request #11 from hired/master

Works in production on [Hired](https://hired.com)
support state params
redirect_uri configurable