[webauthn] new commits pushed by WebAuthnBot

The following commits were just pushed by WebAuthnBot to https://github.com/w3c/webauthn:

* Built by Travis-CI: 23b91fbb455dd3cc84e071c0dab50a3570beea79 Merge pull request #558 from christiaanbrand/patch-2
  by Travis-CI
https://github.com/w3c/webauthn/commit/da433e2b1a6742d379fe252e0a7567aeff171c5e

Received on Wednesday, 4 October 2017 17:41:28 UTC