[webauthn] new commits pushed by WebAuthnBot

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

* Built by Travis-CI: 4f584b82eb9f513efabc1fd317c651df8128d3f2 "with string-valued keys" => "whose keys are strings" (#880)
  by Travis-CI
https://github.com/w3c/webauthn/commit/ee713870bf73508af9677bdf3da59363a1fc9cda

Received on Wednesday, 2 May 2018 16:42:14 UTC