Merge branch 'apkg' into 'master'

.gitignore

distro/Makefile.am

distro/config/apkg.toml

distro/deb/knot.service

distro/deb/knot.tmpfile

distro/pkg/arch/PKGBUILD

distro/pkg/arch/knot.sysusers

distro/pkg/arch/knot.tmpfiles.arch

distro/pkg/deb/changelog

distro/pkg/deb/clean

distro/pkg/deb/compat

distro/pkg/deb/control

distro/pkg/deb/copyright

distro/pkg/deb/docs

distro/pkg/deb/knot-dnsutils.NEWS

distro/pkg/deb/knot-dnsutils.install

distro/pkg/deb/knot-doc.install

distro/pkg/deb/knot-doc.links

distro/pkg/deb/knot-host.NEWS

distro/pkg/deb/knot-host.install