[Checkins] [zopefoundation/zope.site] 4f52a1: Fix tests with zope.interface 5.0, add Python 3.8, ...

[Jason Madden]

  Branch: refs/heads/issue12
  Home:   https://github.com/zopefoundation/zope.site
  Commit: 4f52a1216e976608591bf1a19f7dc7a0542d91c7
      https://github.com/zopefoundation/zope.site/commit/4f52a1216e976608591bf1a19f7dc7a0542d91c7
  Author: Jason Madden <jamadden at gmail.com>
  Date:   2020-04-01 (Wed, 01 Apr 2020)

  Changed paths:
    M .coveragerc
    M .gitignore
    M .travis.yml
    M CHANGES.rst
    M docs/conf.py
    M docs/site.rst
    M setup.py
    M src/zope/site/folder.py
    M src/zope/site/interfaces.py
    M src/zope/site/site.py
    M src/zope/site/site.rst
    M tox.ini
    R version.txt

  Log Message:
  -----------
  Fix tests with zope.interface 5.0, add Python 3.8, drop Python 3.4.

Test with ZOPE_INTERFACE_STRICT_IRO=1; no changes needed for this.

Fix doc building (site.txt is not site.rst) and test it; minor other doc improvements.