coreos/coreos-cloudinit — pull request #48 by calavera (2014-03-22 22:33:51+00:00)
Title: feat(ssh-import): Add ssh-import-url user attribute.

This is extracted from #35 to allow people import keys from any url endpoint.
It's a simplification that works on GitHub Enterprise and any http endpoint that returns a json document with keys in this format:

```json
[
{"key": ...},
{"key": ...},
{"key": ...}
...
]
```