[webauthn] new commits pushed by WebAuthnBot

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

* Built by Travis-CI: 6589a1013cd776da57d704eb8508fcd53fa6cc88 Merge pull request #572 from christiaanbrand/patch-4
  by Travis-CI
https://github.com/w3c/webauthn/commit/27d71f4c1539cc7e87fa1339acfb277c2c8d3845

Received on Thursday, 28 September 2017 04:45:53 UTC