ignoring .htaccess files, for while serving site from Apache.
added jade and partials plugins. version numbers to tilde ranges.
think I may need a canonical <link /> after .htaccess URL magic.
partials plugin makes it easier to use multiple layout templates.

For some reason I'd been thinking I would use the 'default' layout for
basically everything, and load it up with scripts to adjust things
depending on whether the document is a story or one of the archive
lists. But no, it's easier to split up most of the markup into a few
partials, and stitch them together as needed in different layouts.
changed layout from 'default' to 'story'.
changed layout from 'default' to 'archive'.

The 'index.html' front page will obviously be a collection of the most
recent posts. Eventually.
oops, forgot '@' for `@partial()` function call.
apparently eco was trying to parse inside the html TODO comment.
add the document's post date, unless document is inNavMenu.