 add state to passport strategy
 add state to passport strategy

See https://github.com/auth0-samples/auth0-nodejs-webapp-sample/pull/36
yvonnewilson/docs,yvonnewilson/docs,jeffreylees/docs,jeffreylees/docs,auth0/docs,auth0/docs,jeffreylees/docs,auth0/docs,yvonnewilson/docs