[Checkins] [zopefoundation/zope.testrunner] aa2b34: Try a newer pypy3

[GitHub]

  Branch: refs/heads/travis
  Home:   https://github.com/zopefoundation/zope.testrunner
  Commit: aa2b346aaec4bc87edc6c0df7b321c717e7c2f74
      https://github.com/zopefoundation/zope.testrunner/commit/aa2b346aaec4bc87edc6c0df7b321c717e7c2f74
  Author: Marius Gedminas <marius at gedmin.as>
  Date:   2016-12-27 (Tue, 27 Dec 2016)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Try a newer pypy3

I'm hoping I guessed the version number right; it matches the one I see in
https://github.com/yyuu/pyenv/tree/master/plugins/python-build/share/python-build