draft-ietf-httpbis-retrofit-06: Merge pull request #2493 from httpwg/deps

Better field validation install

draft-ietf-httpbis-unprompted-auth-02

draft-ietf-httpbis-unprompted-auth-02

draft-ietf-httpbis-unprompted-auth-01

draft-ietf-httpbis-unprompted-auth-01

draft-ietf-httpbis-client-hints-15

[Client Hints] AD review comments (#1220)

* [Client Hints] AD review comments

* Review comments

* Comments from mnot

* Negotiated header field names must be tokens

draft-ietf-httpbis-client-hints-14

Merge branch 'master' of github.com:httpwg/http-extensions

draft-ietf-httpbis-client-hints-13

[client hints] AD review comments (#1160)

* [client hints] AD review comments

* Bring back doc version to latest

* More feedback from Barry Leiba