[Checkins] [zopefoundation/martian] 79493b: Add support for Python 3.5, 3.6, PyPy2 and PyPy3.

[GitHub]

  Branch: refs/heads/update-python-versions
  Home:   https://github.com/zopefoundation/martian
  Commit: 79493ba3ff52774a65c542986cb4377645a10277
      https://github.com/zopefoundation/martian/commit/79493ba3ff52774a65c542986cb4377645a10277
  Author: Michael Howitz <mh at gocept.com>
  Date:   2017-10-06 (Fri, 06 Oct 2017)

  Changed paths:
    M .gitignore
    M .travis.yml
    M CHANGES.txt
    M setup.py
    M src/martian/tests/test_all.py
    M tox.ini

  Log Message:
  -----------
  Add support for Python 3.5, 3.6, PyPy2 and PyPy3.

Drop support for Python 2.6 and 3.3.