Add file to the reno documentation build to show release notes for
stable/yoga.

Use pbr instruction to increment the minor version number
automatically so that master versions are higher than the versions on
stable/yoga.

Sem-Ver: feature
Change-Id: Ie1126dddd3666d3dc108190133df5e3b085a8404

With Sphinx==4.4.0 some "helpful" warnings were introduced when an
external link could be replaced by a macro, like for :lpbug:. Sadly we
have a very high number of existing release notes that trigger these
warnings and no good way to fix them retrospectively, because would mess
up their mapping to releases. So we change the logging for the
sphinx.ext.extlinks to ignore these warnings for now.

Signed-off-by: Dr. Jens Harbott <harbott@osism.tech>
Change-Id: I709de5e454434b8790a68d9e67ca1432387b21ab

Add file to the reno documentation build to show release notes for
stable/xena.

Use pbr instruction to increment the minor version number
automatically so that master versions are higher than the versions on
stable/xena.

Sem-Ver: feature
Change-Id: Iedf2c908bf5a9d87effa02717eb604ee8d15ef3b

Add file to the reno documentation build to show release notes for
stable/wallaby.

Use pbr instruction to increment the minor version number
automatically so that master versions are higher than the versions on
stable/wallaby.

Sem-Ver: feature
Change-Id: I848e21bf2d2ea1a1a132525070e5f20d7ff8478d

Add file to the reno documentation build to show release notes for
stable/victoria.

Use pbr instruction to increment the minor version number
automatically so that master versions are higher than the versions on
stable/victoria.

Change-Id: I6c1a9cdff90f7073082fc057f0f11b184de5dc32
Sem-Ver: feature

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.

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.

Set openstackdocs_auto_name to use 'project' 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.

Depends-On: https://review.opendev.org/729744
Change-Id: Id3989cabdbf2204821531b00149aa0f1cb8a4955

Add file to the reno documentation build to show release notes for
stable/ussuri.

Use pbr instruction to increment the minor version number
automatically so that master versions are higher than the versions on
stable/ussuri.

Change-Id: Ia0c7a6f2d84a7ed08514a64a73a5de577fcfb1d0
Sem-Ver: feature

Add file to the reno documentation build to show release notes for
stable/train.

Use pbr instruction to increment the minor version number
automatically so that master versions are higher than the versions on
stable/train.

Change-Id: I2cab236b14bc5eac173d815a634c8d8eb2afee04
Sem-Ver: feature

Also clean up some docs and release notes.

Change-Id: I73feec747ca1bd12be5e5700c9ca608ed3a8b2c2
Signed-off-by: Dean Troyer <dtroyer@gmail.com>