requested to merge Ark74/package-helpers:rm_bionic_source_packages_11.0 into aramo
- check-mk is no longer compilable with aramo's gcc version maybe add previous release built binaries to keep it around.
- rdiff-backup has a newer version available on the repositories.
- python-pylibacl is only for dependency purpose for rdiff-backup
- python-pyxattr is only for dependency purpose for rdiff-backup