Many plumbing changes:

* Move articles from main content folder into subfolders by category;
  category is now determined by subfolder name.
* Crawled site for broken links; fixed all of them.
* Added a 404 page.
* Split config into common, local (development only) and publish
  (remote).
* Modified fabfile so it suits my needs
* Now deploying to Amazon S3.
Multiple article changes

* Added Xavier Cross Benefit article, with link to gallery.
* Now creating photo galleries with Adobe Lightroom and including them
  as static assets.
* Template changes to make pages use the same layout as articles.