[w3c/webauthn] 9598e1: Relaxing user prompt requirements in certain cases

  Branch: refs/heads/balfanz-patch-3
  Home:   https://github.com/w3c/webauthn
  Commit: 9598e1d11e4ab344387131ad908f0335512bebdb
      https://github.com/w3c/webauthn/commit/9598e1d11e4ab344387131ad908f0335512bebdb
  Author: balfanz <dirk@balfanz.net>
  Date:   2017-10-11 (Wed, 11 Oct 2017)

  Changed paths:
    M index.bs

  Log Message:
  -----------
  Relaxing user prompt requirements in certain cases

Relaxing the requirement to prompt the user on key creation *if* the authenticator is built-in *and* the RP didn't supply an excludeList of credentials.