We stopped testing python2, but there are more things to be cleanup.

- Remove python2 entries from setup.cfg
- Add releasenotes
- remove universal wheel since this is only python 3 now

Change-Id: Ie2bbb4d34b8411939ad5cfd750fc76c933779542

Since the OpenStackClient team doesn't meet anymore, I removed
the mention of meetings and added mention of the IRC channel in the
communication section of the docs..

Change-Id: Iefa95878f95bf84bd9fc22ea4c914effc30dffa7

This commit introduces the --access-rules option for 'application
credential create' as well as new 'access rule' commands for listing,
showing, and deleting access rules.

bp whitelist-extension-for-app-creds

Change-Id: I04834b2874ec2a70da456a380b5bef03a392effa

Use some regexes to reduce the number of lines in .htaccess and
hopefully make it slightly clearer which groupings of files redirect to
which new locations.

Also collapse one redundant double-redirect.

Change-Id: I65c4960856985d71076291f175df17f27a5ab8cc

Adds a dependency on and invocation of the `whereto` command to validate
redirects in the .htaccess file during doc builds.

Change-Id: Ib6cc2953f0fd774de3c3a0c8a2bd6cff49667c14

$namespace = openstack.compute.v2

The subcommand documents for $namespace were hardcoded and thus prone to
drift over time. This commit removes the hardcoded content and uses the
autoprogram-cliff directive to generate them automatically from the
subcommand configuration classes.

Many of these were already being generated. Some were missing a few
sub-subcommands, so those are added.

Change-Id: I1aa4b2655bafd2f6a5d83b658742f65d180eb128

$namespace = openstack.cli

The subcommand documents for $namespace were hardcoded and thus prone to
drift over time. This commit removes the hardcoded content and uses the
autoprogram-cliff directive to generate them automatically from the
subcommand configuration classes.

Change-Id: I1f7e9d0e5748f887dbc35200c3c8b4407da43e0b

$namespace = openstack.common

The subcommand documents for $namespace were hardcoded and thus prone to
drift over time. This commit removes the hardcoded content and uses the
autoprogram-cliff directive to generate them automatically from the
subcommand configuration classes.

This incorporates a correction to `openstack versions show`: The command
`openstack versions show --help` showed a copy/paste error, using
<region-name> for the metavar for both --service and --status. Fix.

Change-Id: I7658fed40d71f4c20ee27908ade433534657cfe5
Co-Authored-By: Pierre Prinetti <pierreprinetti@redhat.com>
Co-Authored-By: Matt Riedemann <mriedem.os@gmail.com>

The help page for network auto allocated topology had a link to a
newton-era networking guide document that has been superseded and is
now maintained in the neutron repository.

This commit adds 'neutron' to the openstackdocstheme configuration so
that the :neutron-doc: role works, and updates the link to point to the
modern version therein.

Change-Id: I5bcb40e265b22f15ff2f5ca4936160e231bb4075