New upstream release:

• iso: Clean up cache for guestmount
• Remove deprecated warn() call
• arch_utils: Fix ResourceWarnings
• Add support for new Pungi Buildinstall Koji plugin
• Make --task-id mandatory in get_runroot_cmd
• Wait on runroot tasks with wait-task command
• pkgset: Ignore deleted module builds
• Add tests for new exclude options
• Remove invalid parameters from osbs config
• pungi-gather: add options for excluding debug and source packages
• Hide latest koji package via pkgset_koji_builds option
• Add a new option for customizing version in .treeinfo
• Kickstart on RHEL 7 does not have metalink attr
• Support generating ISOs when using link_type="symlink"
• pkgset: Hardlink downloaded packages
• Check dependency of --just-phase
• Update runroot_method documentation
• Remove productimg phase
• Fix unified isos with missing images.json
• Allow setting runroot_method per Pungi phase
• ostree: Fix arg passed to scm.get_dir_from_scm
• Improve detection of lookaside packages
• gather: Deduplicate packages before printing
• Do not mention pdc_client when missing modulemd
• gather: Improve logging for gathering
• gather: handle metalink in kickstart repos
• Avoid crash if a module is not available on all arches
• Add version constraint to productmd dependency
• Allow specifying temp dir in pungi-gather