MAR-218: Document the workaround needed to make Molecule instance logins work:

- It should be possible to drop this workaround once the upstream has
taken care of merging the necessary fixes.

Noticket: Added workaround to development process for outdated Molecule version:

- Unfortunately, the Molecule version used for running tests does not
generate valid Ruby 3.x code. For now just work around the way Hash
is unpacked in function calls to optional arguments (until the test
stack gets a revamp).

MAR-192: Updated test site instructions/deployment for Debian 12 Bookworm:

- Default to recommending Debian 12 Bookworm.
- Update the demo WSGI application for Python 3 use.

MAR-194: Configure static IPv6 addresses for testing of common role:

- Requires some additional steps to be done when preparing the
development machine, since VirtualBox prohibits use of network
subnets that are not explicitly configured for use with private
networks.

MAR-154: Update documentation and test site for Python 2.7 support removal:

- Drop most of the references to Python 2.
- Switch anything that has been previously using Python 2.7 to Python
3.

MAR-189: Drop development upgrade instructions for Molecule/Testinfra:

- This has been done long time ago, and it's just a leftover artifact
at this point (has no real value any longer).

MAR-189: Updated instructions and configuration for test site for Debian 11 Buster:

- Use a more generic Emacs package name.

MAR-149: Improved documentation for the test site (more details):

- Cover server names.
- Cover additional names that should be resolvable towards the web
server (for reaching sample web applications)
- Include links for testing the sample web applications.

MAR-152: Update documentation regarding removal of support for Debian 8 Jessie:

- Updated introductory information about the project.
- Removed references to Debian 8 Jessie from documentation.
- Updated release notes.

MAR-132: Updated test site instructions:

- Mention that either Jessie or Stretch can be used for installation.
- Updated command for getting the SSH key fingerprints to use the dig
tool.

MAR-129: Added information about test tools to development documentation:

- Document use of mcabber/mutt configuration files for trying out the
XMPP/mail server.

MAR-129: Update development documentation for testsite:

- Update versions of VirtualBox/Vagrant that have been tested.
- Move notes about how the servers have been set-up to towards
beginning of section describing the test site.
- Put deployment of test site into a sub-section of its own.

MAR-128: Updated script for running tests and documentation:

- Updated script, removing parts related to separate platform testing
from old version of Molecule.
- Updated instructions for running the test script.

MAR-110: Implemented script for running tests for all roles:

- Updated gitignore file to ignore test reports.
- Updated instructions for running tests.
- Added Bash script that wraps around Molecule and allows output of reports into
a directory.

MAR-30: Fixes for multiple platforms and more extensive testing:

- Include instructions on how to run tests against different platforms (Debian
versions).
- Use correct base box for Debian Stretch when testing role 'preseed'.
- Use fixed hostnames when runnig teets for role 'preseed'.
- Make sure to test preseed configuration file when providing overrides for a
host that does not include overrides as well in role 'preseed'.

MAR-30: Added documentation related to development:

- Moved existing test site documentation under the new 'Development' chapter.
- Added instructions for preparing development environment.
- Added instructions for running Ansible role tests.
- Added requirement input and txt files for use with pip-tools.