Oops, I’d been sitting on a bunch of bugfixes for a month, which I didn’t notice until I put in another bugfix tonight.

Changes since v0.5.5:

• Fix title sanitization
• Handle category.name with the same formatting options as entry.title
• Replace hand-rolled atomic file operations with atomicwrites
• Add link_class to image renditions
• Fix automatic alt generation for external images
• Simplify the way entry URLs are canonicized
• Fix some bitrot in older tests