Publ 0.6.8, Authl 0.4.3

Some pretty big new features added. First, in Authl:

• Major documentation improvements
• Bug fixes with Fediverse instance caching
• All providers now normalize to the same profile format
• Some basic spam prevention for the email provider
• 100% unit test coverage on the Fediverse provider (which is now using mastodon.py instead of a hand-rolled OAuth client)

And in Publ:

• Fenced code now uses <figure> and <figcaption> instead of ad-hoc <div>s for its layout, and the overall HTML semantic has been greatly improved
• Individual code blocks are now configurable with respect to highlighting and line numbering
• The user object now provides a user profile and separates the identity URL from the familiar name