app-portage/repo-commit: Drop old

Package-Manager: portage-2.2.12
Merge https://github.com/gx86-git-test/gx86-test-dev/pull/1
Merge branch 'master' of /home/mgorny/dev
Metadata update
Merge branch 'master' of /home/mgorny/user
Thicken and sign the Manifests