+ * Revamp sorting system; allow new sort methods to be added by plugins,
+ and add a "sortspec" syntax that can combine, reverse, etc sort methods
+ * meta: Add `meta(author)`, `meta(title)` etc sortspecs to allow sorting
+ by metadata.
+ * meta: Add optional sortas parameter to author and title meta directives.
+ This can be used to get names sorted by last name without displaying
+ them last name first.
+ * sortnarurally: New plugin; the title_natural sort method has moved here.