Make a few cleanups:
- Remove obsolete sections from setup.cfg
- Remove install_command from tox.ini, the default
is fine
- Switch to sphinx-build
- Enable warnings for doc build, fix all warnings
- Remove git handling from conf.py, openstackdocstheme does this now
- Cleanup tox.ini
Change-Id: I51796be20596afc2305c2d8ea189b4037bd28b2d
The commands used by constraints need at least tox 2.0. Update to
reflect reality, which should help with local running of constraints
targets.
Change-Id: Idd54092b2d2b9713d4ffbc2bcbd87a0f222d8a23
We want to default to running all tox environments under python 3, so
set the basepython value in each environment.
We do not want to specify a minor version number, because we do not
want to have to update the file every time we upgrade python.
We do not want to set the override once in testenv, because that
breaks the more specific versions used in default environments like
py35 and py36.
Change-Id: Id94e8d7db17059228e8957e74922a684043ed469