[Checkins] [zopefoundation/zopetoolkit] 8f243b: Python 3.7 on most current versions. (#27)

[Michael Howitz]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/zopetoolkit
  Commit: 8f243bbeaa7d95fd4fcd827e7c16668338c40682
      https://github.com/zopefoundation/zopetoolkit/commit/8f243bbeaa7d95fd4fcd827e7c16668338c40682
  Author: Michael Howitz <mh at gocept.com>
  Date:   2019-02-12 (Tue, 12 Feb 2019)

  Changed paths:
    M .travis.yml
    M docs/ztksphinx.py
    M ztk-versions.cfg

  Log Message:
  -----------
  Python 3.7 on most current versions. (#27)

* Use current version to make Python 3.7 happy.

* Fix deprecation warning.

`sphinx.util.compat.Directive` will no longer exist in newer Sphinx versions.

* Update to newest versions.

* Remove not needed sudo.