[w3c/webauthn] 986d62: Don't say user handle is optional in Public Key Cr...

  Branch: refs/heads/master
  Home:   https://github.com/w3c/webauthn
  Commit: 986d6275555e1b9cdd58dc1fcb6df306979e3e9c
      https://github.com/w3c/webauthn/commit/986d6275555e1b9cdd58dc1fcb6df306979e3e9c
  Author: Emil Lundberg <lundberg.emil@gmail.com>
  Date:   2017-12-13 (Wed, 13 Dec 2017)

  Changed paths:
    M index.bs

  Log Message:
  -----------
  Don't say user handle is optional in Public Key Credential Source definition (#721)

This resolves #720.