[Checkins] [zopefoundation/grok] d91d4b: update changelog

[GitHub]

  Branch: refs/heads/lazy-annotation
  Home:   https://github.com/zopefoundation/grok
  Commit: d91d4b7b244ab08eb2ed24235f5ea2a81e53558f
      https://github.com/zopefoundation/grok/commit/d91d4b7b244ab08eb2ed24235f5ea2a81e53558f
  Author: Jan-Wijbrand Kolman <jkolman at minddistrict.com>
  Date:   2017-05-26 (Fri, 26 May 2017)

  Changed paths:
    M CHANGES.txt

  Log Message:
  -----------
  update changelog