[Checkins] [zopefoundation/z3c.form] d12017: Install the needed Python versions.

[GitHub]

  Branch: refs/heads/update_supported_versions
  Home:   https://github.com/zopefoundation/z3c.form
  Commit: d120170f2f79768265b0226405edb098803ba72f
      https://github.com/zopefoundation/z3c.form/commit/d120170f2f79768265b0226405edb098803ba72f
  Author: Michael Howitz <mh at gocept.com>
  Date:   2016-11-12 (Sat, 12 Nov 2016)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Install the needed Python versions.