Switch to openstackdocstheme 2.2.1 and reno 3.1.0 versions. Using
these versions will allow especially:
* Linking from HTML to PDF document
* Allow parallel building of documents
* Fix some rendering problems
Update Sphinx version as well.
Remove docs requirements from lower-constraints, they are not needed
during install or test but only for docs building.
openstackdocstheme renames some variables, so follow the renames
before the next release removes them. A couple of variables are also
not needed anymore, remove them.
Change pygments_style to 'native' since old theme version always used
'native' and the theme now respects the setting and using 'sphinx' can
lead to some strange rendering.
See also
http://lists.openstack.org/pipermail/openstack-discuss/2020-May/014971.html
Change-Id: Ie4aec288c74b9bd8d8d117f4bc2e0282cea4db90
Make a few cleanups:
- Remove python 2.7 stanza from setup.py
- Update classifiers
- Update requirements, no need for python_version anymore
Change-Id: I6b6dfb0959973abf0c2e8325006025db2a5d85d0
Some options are now automatically configured by the version 1.20:
- project
- html_last_updated_fmt
- latex_engine
- latex_elements
- version
- release.
Change-Id: I2577ca452a014402f1377474457095176d422b42
Sphinx 2.0 no longer works on python 2.7, so we need to start capping
it there as well
depend on https://review.opendev.org/#/c/657890/
Change-Id: Ic77e0db24ab7d7f068faf3e237beefa8856a710a
Andreas Jaeger