function loadTodos(req, res, next) {
    fs.readdir(req.dir, function(err, files) {
        if (err) {
            req.log.warn(err, 'loadTodo: unable to read %s', req.dir);
            next(err);
        } else {
            req.todos = files;

            if (req.params.name) {
                req.todo = req.dir + '/' + req.params.name;
            }

            req.log.debug(
                {
                    todo: req.todo,
                    todos: req.todos
                },
                'loadTODO: done'
            );

            next();
        }
    });
}
Loads up all the stored TODOs from our "database". Most of the downstream
handlers look for these and do some amount of enforcement on what's there.