biolimit: max character length of bio; 0 means no limit; null means to use
the site text limit default.
+backup: whether users can backup their own profiles. Defaults to true.
+restore: whether users can restore their profiles from backup files. Defaults
+ to true.
+delete: whether users can delete their own accounts. Defaults to true.
+move: whether users can move their accounts to another server. Defaults
+ to true.
newuser
-------
nofollowed on profile, notice, and favorites page. Default is
'sometimes'.
+router
+------
+
+We use a router class for mapping URLs to code. This section controls
+how that router works.
+
+cache: whether to cache the router in memcache (or another caching
+ mechanism). Defaults to true, but may be set to false for
+ developers (who might be actively adding pages, so won't want the
+ router cached) or others who see strange behavior. You're unlikely
+ to need this unless you're a developer.
+
Plugins
=======