[w3c/webauthn] a8799a: re- fix #466 (due to merge-from-master), fix #536

  Branch: refs/heads/jeffh-fixup-algs-contd-3
  Home:   https://github.com/w3c/webauthn
  Commit: a8799aafa60c6b00d0264b99529e8682ea33a1a9
      https://github.com/w3c/webauthn/commit/a8799aafa60c6b00d0264b99529e8682ea33a1a9
  Author: JeffH <Jeff.Hodges@PayPal.com>
  Date:   2017-10-13 (Fri, 13 Oct 2017)

  Changed paths:
    M index.bs

  Log Message:
  -----------
  re- fix #466 (due to merge-from-master), fix #536


  Commit: f5a08fbb77a25eb0a911ae35d1e24f25fd71a8f7
      https://github.com/w3c/webauthn/commit/f5a08fbb77a25eb0a911ae35d1e24f25fd71a8f7
  Author: JeffH <Jeff.Hodges@PayPal.com>
  Date:   2017-10-13 (Fri, 13 Oct 2017)

  Changed paths:
    M index.bs

  Log Message:
  -----------
  eliminate callback and just return an algorithm from #createCredential


Compare: https://github.com/w3c/webauthn/compare/8fe61c685eae...f5a08fbb77a2