[Checkins] [zopefoundation/zopetoolkit] bb7b72: Keep supporting Python 2.7.

[Michael Howitz]

  Branch: refs/heads/py38
  Home:   https://github.com/zopefoundation/zopetoolkit
  Commit: bb7b722cb58987f613b7e39ebe235f7767409293
      https://github.com/zopefoundation/zopetoolkit/commit/bb7b722cb58987f613b7e39ebe235f7767409293
  Author: Michael Howitz <mh at gocept.com>
  Date:   2020-02-14 (Fri, 14 Feb 2020)

  Changed paths:
    M .travis.yml
    M README.rst
    M ztk-versions.cfg

  Log Message:
  -----------
  Keep supporting Python 2.7.