[webauthn] new commits pushed by WebAuthnBot

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

* Built by Travis-CI: aabeeaf52debdad98bbedc8ff9efed4e96d37451 Merge pull request #881 from w3c/issue-874-clarify-use-case
  by Travis-CI
https://github.com/w3c/webauthn/commit/2b0e847cd17d0499e67503881c40eb2ea3598bd6

Received on Wednesday, 2 May 2018 10:51:07 UTC