+ title, and "mtime" sorts most recently modified pages first. If
+ [Sort::Naturally](http://search.cpan.org/dist/Sort-Naturally/lib/Sort/Naturally.pm)
+ is installed, `sort` can be set to "title_natural" to sort by title with
+ numbers treated as such ("1 2 9 10 20" instead of "1 10 2 20 9").