[Checkins] [zopefoundation/grokcore.layout] 2c0c12: update changelog

[GitHub]

  Branch: refs/heads/resurrection-python3
  Home:   https://github.com/zopefoundation/grokcore.layout
  Commit: 2c0c12111df9cb04e823a90a7e3f4954b3aa6bee
      https://github.com/zopefoundation/grokcore.layout/commit/2c0c12111df9cb04e823a90a7e3f4954b3aa6bee
  Author: Jan-Wijbrand Kolman <jkolman at minddistrict.com>
  Date:   2018-01-10 (Wed, 10 Jan 2018)

  Changed paths:
    M CHANGES.txt

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