goofing off with bookshelf.js

New plan:

• goof off with bookshelf.js
• maybe something simpler than a whiteboard, like a markdown wiki?
  • have pages, users, and tags
  • users are their own page namespace /u/:id/:page
    • or /:user_name/:id/:page where user_name is ignored but looks nicer
  • have an index page that lists users, pages, and page tags
    • as a test of bookshelf's eager loading, mostly