Resolve "Prepare file CHANGELOG.md and version string in file pyproject.toml for releasing version v1.2.0"
Prepare file CHANGELOG.md and file pyproject.toml for release v1.2.0
- Adapt file CHANGELOG.md to cover most recent changes made since last release.
- Adapt version string to 1.2.0 in file pyproject.toml.
Closes #164 (closed)