Setuptools v54.1.0 introduces a warning that the use of dash-separated
options in 'setup.cfg' will not be supported in a future version [1].
Get ahead of the issue by replacing the dashes with underscores. Without
this, we see 'UserWarning' messages like the following on new enough
versions of setuptools:
UserWarning: Usage of dash-separated 'description-file' will not be
supported in future versions. Please use the underscore name
'description_file' instead
[1] https://github.com/pypa/setuptools/commit/a2e9ae4cb
Change-Id: I651339c8103cb46f7d4eb0107bb300a6da29dbb1
Update docs building:
* Switch to sphinx-build
* Update requirements for Sphinx and openstackdocstheme for
python 3, create doc/requirements.txt file.
* Remove unneeded doc and translation sections from setup.cfg
* Remove install_command, it's unneeded, the default is fine.
* Use TOX_CONSTRAINTS instead of obsolete UPPER_CONSTRAINTS
Change-Id: I6ff4427014fc967a6f7b28fc6cbe5a0f4eca601c
* Set setup.cfg URL to the (future) documentation link
* Remove Python 3.3 and 3.4 support, leave only 3.5
* Update README with actual information
* Include README in index.rst as an introduction
* Very basic usage guide, mostly links to Tempest docs
* Switch links to HTTPS
Depends-On: If130b765604d606420a4877a548e82d311ef7b9b
Change-Id: Idacf84322773e40eaaa6346dc062291578876a1d