openSUSE/umoci: umoci 0.4.5

• Expose umoci subcommands as part of the API, so they can be used by other Go projects. openSUSE/umoci#289
• Add extensible hooking to the core libraries in umoci, to allow for third-party media-types to be treated just like first-party ones (the key difference is the introspection and parsing logic). openSUSE/umoci#299 openSUSE/umoci#307
• Use type: bind for generated config.json bind-mounts. While this doesn't make too much sense (see opencontainers/runc#2035), it does mean that rootless containers work properly with newer runc releases (which appear to have regressed when handling file-based bind-mounts with a "bad" type). openSUSE/umoci#294 openSUSE/umoci#295
• Don't insert a new layer if there is no diff. openSUSE/umoci#293
• Only output a warning if forbidden extended attributes are present inside the tar archive -- otherwise we fail on certain (completely broken) Docker images. openSUSE/umoci#304

Thanks to all of the people who made this release possible:

• Aleksa Sarai asarai@suse.de
• David Trudgian dave@trudgian.net
• Tycho Andersen tycho@tycho.ws

Signed-off-by: Aleksa Sarai asarai@suse.de