Make a few cleanups:
- Remove python 2.7 stanza from setup.py
- Add requires on python >= 3.6 to setup.cfg so that pypi and pip
know about the requirement
- Remove ancient sections from setup.cfg
- Update requirements
- Remove unused import from conf.py
Change-Id: I87261d38992dedd87709ad8beff0bb533064e118
This is an attempt to fix package version problem caused by Routes. In
the gobal requirements (at the moment), we have to use version 1.13 of
the Routes package. However, that version is not py34 friendly. This
patch adds a separate testenv and a separate requirements-py3.txt file
to deal with this.
Change-Id: Id751f3303b546ac066f65c16385232dcc10bd790