0.7.0 alpha

This update adds the following features:

• Attribute certificate support.
• A new subcommand (certomancer seance) to interact with Certomancer's mock OCSP responders from the CLI.

In addition, there are a number of miscellaneous tweaks & bug fixes:

• Fix OCSP request handling for requests without the nonce extension.
• Avoid leaving the extensions field in an OCSP response empty when there are no extensions, and just omit it entirely in that case.
• Improved service merging when using existing PKI architectures as templates.
• Detect instances of self-referential issuer-cert and throw immediately instead of blowing up the stack.
• Be more careful not to pollute certificate templates by storing template information before deriving default values for entries that depend on other entries.