updating python versions to match README.rst

[e0d]

Trivial fix to make README.rst and these files consistent.

[coveralls]

Coverage remained the same at 100.0% when pulling 5b8a409 on e0d:e0d/make-docs-consistent into 8f8cadb on orcasgit:master.

[e0d]

Looks like pypy and pypy3 are not configured on Travis.

[e0d]

Closing and reopening to rerun tests in case this was an ephemeral error.

[e0d]

Seeing this will try to resolve when I have time.

ERROR:   pypy-django111-sqlite: undefined
Traceback (most recent call last):
  File "/home/travis/virtualenv/pypy2.7-7.1.1/bin/tox", line 10, in <module>
    sys.exit(cmdline())
  File "/home/travis/virtualenv/pypy2.7-7.1.1/site-packages/tox/session/__init__.py", line 44, in cmdline
    main(args)
  File "/home/travis/virtualenv/pypy2.7-7.1.1/site-packages/tox/session/__init__.py", line 68, in main
    exit_code = session.runcommand()
  File "/home/travis/virtualenv/pypy2.7-7.1.1/site-packages/tox/session/__init__.py", line 192, in runcommand
    return self.subcommand_test()
  File "/home/travis/virtualenv/pypy2.7-7.1.1/site-packages/tox_travis/hacks.py", line 27, in subcommand_test
    retcode = real_subcommand_test(self)
  File "/home/travis/virtualenv/pypy2.7-7.1.1/site-packages/tox/session/__init__.py", line 220, in subcommand_test
    run_sequential(self.config, self.venv_dict)
  File "/home/travis/virtualenv/pypy2.7-7.1.1/site-packages/tox/session/commands/run/sequential.py", line 9, in run_sequential
    if venv.setupenv():
  File "/home/travis/virtualenv/pypy2.7-7.1.1/site-packages/tox/venv.py", line 594, in setupenv
    status = self.update(action=action)
  File "/home/travis/virtualenv/pypy2.7-7.1.1/site-packages/tox/venv.py", line 257, in update
    self.hook.tox_testenv_install_deps(action=action, venv=self)
  File "/home/travis/virtualenv/pypy2.7-7.1.1/site-packages/pluggy/hooks.py", line 289, in __call__
    return self._hookexec(self, self.get_hookimpls(), kwargs)
  File "/home/travis/virtualenv/pypy2.7-7.1.1/site-packages/pluggy/manager.py", line 87, in _hookexec
    return self._inner_hookexec(hook, methods, kwargs)
  File "/home/travis/virtualenv/pypy2.7-7.1.1/site-packages/pluggy/manager.py", line 81, in <lambda>
    firstresult=hook.spec.opts.get("firstresult") if hook.spec else False,
  File "/home/travis/virtualenv/pypy2.7-7.1.1/site-packages/pluggy/callers.py", line 208, in _multicall
    return outcome.get_result()
  File "/home/travis/virtualenv/pypy2.7-7.1.1/site-packages/pluggy/callers.py", line 81, in get_result
    _reraise(*ex)  # noqa
  File "/home/travis/virtualenv/pypy2.7-7.1.1/site-packages/pluggy/callers.py", line 187, in _multicall
    res = hook_impl.function(*args)
  File "/home/travis/virtualenv/pypy2.7-7.1.1/site-packages/tox/venv.py", line 738, in tox_testenv_install_deps
    venv._install(deps, action=action)
  File "/home/travis/virtualenv/pypy2.7-7.1.1/site-packages/tox/venv.py", line 457, in _install
    self.run_install_command(packages=packages, options=options, action=action)
  File "/home/travis/virtualenv/pypy2.7-7.1.1/site-packages/tox/venv.py", line 407, in run_install_command
    env=env,
  File "/home/travis/virtualenv/pypy2.7-7.1.1/site-packages/tox/venv.py", line 574, in _pcall
    report_fail=not is_test_command,
  File "/home/travis/virtualenv/pypy2.7-7.1.1/site-packages/tox/action.py", line 121, in popen
    reporter.quiet(output)
  File "/home/travis/virtualenv/pypy2.7-7.1.1/site-packages/tox/reporter.py", line 123, in quiet
    self.logline_if(Verbosity.QUIET, "quiet", msg)
  File "/home/travis/virtualenv/pypy2.7-7.1.1/site-packages/tox/reporter.py", line 74, in logline_if
    message = str(msg) if key is None else "{}{}".format(key, msg)
UnicodeEncodeError: 'ascii' codec can't encode character u'\u2018' in position 15699: ordinal not in range(128)