Some minor updates:

• We now include ACME account location as part of the returned the certificate metadata. This is not required by spec, but it is useful for ARI maintenance as well as reference/troubleshooting.
• Minor changes to conform with ari-draft-04 revisions, namely handling errors/invalid responses from ACME servers.

Full Changelog: https://github.com/mholt/acmez/compare/v2.0.1...v2.0.3