Publ v0.3.16

Just another minor release of Publ! Mostly bugfixes. Here’s what’s new:

• Fixed an issue with HTML <img> rewriting with non-lowercase attribute names
• Fixed a bug with missing entries causing Publ to die when it tried to remove them from the index
• Added category.root
• Some code cleanups, especially removing some unneeded backwards compatibility shims for unsupported versions of Python
• Redirect-To will now resolve link targets

Relatedly to category.root, I’d neglected to add category.breadcrumb to the manual when that functionality went in, and I’ve also added some usage examples, including something useful for fancy navigation bars.