Set content-type to json on v2 registry GET manifest
Merge pull request #5 from jlhawn/vbatts-v2_hacking

Set content-type to json on v2 registry GET manifest
Merge pull request #6 from dmcgowan/wip_provenance

WIP support manifest signature
make the directory first

2014/08/29 09:56:34 unable to write private key file
/home/vbatts/.docker/key.json: open /home/vbatts/.docker/key.json: no
such file or directory
plumbing v2 `docker push`
Add manifest data struct