[w3c/webauthn] 03801e: Simplify attestation structure by moving details i...

  Branch: refs/heads/vijaybh/1-abstraction
  Home:   https://github.com/w3c/webauthn
  Commit: 03801e10e2ed70c60513224f497c212a6b5f1ad0
      https://github.com/w3c/webauthn/commit/03801e10e2ed70c60513224f497c212a6b5f1ad0
  Author: Vijay Bharadwaj <vijaybh@users.noreply.github.com>
  Date:   2016-04-28 (Thu, 28 Apr 2016)

  Changed paths:
    M index.src.html

  Log Message:
  -----------
  Simplify attestation structure by moving details into authnr model

Moved most of the attestation details into the authenticator model
section, and flattened the structures for simplicity. Updated spec
language to match.

It may be possible to further simplify the attestation details in the
authenticator model section, but I would prefer that an attestation
expert weigh in on that.

Also a few other small formatting fixups.