Updates
- Add rel="prev/next" for links in paginator #638
- open_graph helper: allow multiple images
- Replace Express with Connect #532
Fixed
- util.yfm: fix parsing bug with inline separator #636
- post.create: wrap title with quotations #636
- auto_spacing filter: use pangunode instead #631
- Refactor external_link filter with cheerio
- Escape slugs for tags and categories, honor filename_case setting. #644
- util.escape.filename: don't change filename to lowercase by default #644