[w3c/webauthn] d8b103: address empty allowlist in 'use existing cred' alg...

  Branch: refs/heads/master
  Home:   https://github.com/w3c/webauthn
  Commit: d8b103a799a6c16d39440e2acb130a36c247f99a
      https://github.com/w3c/webauthn/commit/d8b103a799a6c16d39440e2acb130a36c247f99a
  Author: =JeffH <Jeff.Hodges@KingsMountain.com>
  Date:   2017-06-06 (Tue, 06 Jun 2017)

  Changed paths:
    M index.bs

  Log Message:
  -----------
  address empty allowlist in 'use existing cred' alg, fixes #387 (#427)

* address empty allowlist in 'use existing cred' alg, fixes #387

* incorp jyasskin suggestion. improves #387

* surgery w/hammer, saw, torch on prior attempt to incorp jyasskin suggestion. improves #387

* more surgery hopefully improving #387

* add back backslash on [[DiscoverFromExternal...

* various fixups, move Note up, separate gathering of creds from messing with transports

* revert processing of allowList back to close to original, polish such that fix #387, fix #481

* revert processing of allowList back to close to original, polish such that fix #387

* revise to explictly handle empty credDescpList, may improve #481