[w3c/webauthn] cca20d: Use COSE_Key and COSE Algorithm Identifiers (#514)

  Branch: refs/heads/master
  Home:   https://github.com/w3c/webauthn
  Commit: cca20d3dd8ac7713904b3ceecd2e0be493592761
      https://github.com/w3c/webauthn/commit/cca20d3dd8ac7713904b3ceecd2e0be493592761
  Author: Mike Jones <Michael.Jones@microsoft.com>
  Date:   2017-08-04 (Fri, 04 Aug 2017)

  Changed paths:
    M images/fido-attestation-structures.svg
    M images/fido-signature-formats-figure1.svg
    M index.bs

  Log Message:
  -----------
  Use COSE_Key and COSE Algorithm Identifiers (#514)

Incorporates improvements from @equalsJeffH .

* Restored incorrectly deleted Credential ID

* add refs for IANA COSE & JOSE registries

* create AlgorithmIdentifier typedef

* fix biblio json - delete commas

* polish several things, eg UV, UP, uv, rk -related

* fixup figs 1 & 3, fix attestation data description S 5.3.1

* really fixing attestation data description S 5.3.1

* Added dashes in registry references to make them more readable