Switch to openstackdocstheme 2.2.1 version. Using
this version will allow especially:
* Linking from HTML to PDF document
* Allow parallel building of documents
* Fix some rendering problems
Update Sphinx version as well.
Disable openstackdocs_auto_name to use 'project' variable as name.
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.
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.
See also
http://lists.openstack.org/pipermail/openstack-discuss/2020-May/014971.html
Change-Id: I9dbba04f3918ced819e9e69a58bc5e580ad5d538
Warning is now treated as an error to prevent backlog of genuine
formatting issues, e.g. improper references, indentation and not listing
newly added specs into the index.
Change-Id: I3b8a1ce7f931bfd83db36600dc74d1d0c2ef293e
niuke