1.3.3

[1.3.3]

Added

• Added CI unit and integration tests from source on Ubuntu 20.04
• Added regular cleanups of CI caches on GitLab
• Added diagrams representing CI/CD workflows to developer documentation
• Added Markdown builder for Sphinx documentation

Changed

• Updated minimum required CMake version to 2.8.12
• Improved clarity of some messages from the MPI hook
• Updated copyright notice and license formatting
• Migrated container images used by unit and integration tests to Quay.io

Fixed

• Fixed bug preventing extraction of image layers with hardlinks pointing to absolute paths
• Small fix to RapidJSON installation documentation