[Checkins] [zopefoundation/zope.viewlet] d14a6d: Add Python 3.6, drop Python 3.3

[GitHub]

  Branch: refs/heads/py36
  Home:   https://github.com/zopefoundation/zope.viewlet
  Commit: d14a6d2f0eae629e23d1993cbde62460de7aa226
      https://github.com/zopefoundation/zope.viewlet/commit/d14a6d2f0eae629e23d1993cbde62460de7aa226
  Author: Jason Madden <jamadden at gmail.com>
  Date:   2017-08-25 (Fri, 25 Aug 2017)

  Changed paths:
    A .coveragerc
    M .gitignore
    M .travis.yml
    M CHANGES.rst
    M MANIFEST.in
    M README.rst
    A setup.cfg
    M setup.py
    A src/zope/viewlet/README.rst
    R src/zope/viewlet/README.txt
    A src/zope/viewlet/directives.rst
    R src/zope/viewlet/directives.txt
    M src/zope/viewlet/tests.py
    M tox.ini

  Log Message:
  -----------
  Add Python 3.6, drop Python 3.3

Fixes #3

- Badges
- Universal wheels
- Rename .txt -> .rst
- Modern tox.ini and .travis.yml
- Enable coverage environment and coveralls.io
  - Coverage at 97.98%