+url
+---
+
+Everybody loves URL shorteners. These are some options for fine-tuning
+how and when the server shortens URLs.
+
+shortener: URL shortening service to use by default. Users can override
+ individually. 'ur1.ca' by default.
+maxlength: If an URL is strictly longer than this limit, it will be
+ shortened. Note that the URL shortener service may return an
+ URL longer than this limit. Defaults to 25. Users can
+ override. If set to 0, all URLs will be shortened.
+maxnoticelength: If a notice is strictly longer than this limit, all
+ URLs in the notice will be shortened. Users can override.
+ -1 means the text limit for notices.
+
+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.
+
+http
+----
+
+Settings for the HTTP client.
+
+ssl_cafile: location of the CA file for SSL. If not set, won't verify
+ SSL peers. Default unset.
+curl: Use cURL <http://curl.haxx.se/> for doing HTTP calls. You must
+ have the PHP curl extension installed for this to work.
+proxy_host: Host to use for proxying HTTP requests. If unset, doesn't
+ do any HTTP proxy stuff. Default unset.
+proxy_port: Port to use to connect to HTTP proxy host. Default null.
+proxy_user: Username to use for authenticating to the HTTP proxy. Default null.
+proxy_password: Password to use for authenticating to the HTTP proxy. Default null.
+proxy_auth_scheme: Scheme to use for authenticating to the HTTP proxy. Default null.
+
+plugins
+-------
+
+default: associative array mapping plugin name to array of arguments. To disable
+ a default plugin, unset its value in this array.
+locale_path: path for finding plugin locale files. In the plugin's directory
+ by default.
+server: Server to find static files for a plugin when the page is plain old HTTP.
+ Defaults to site/server (same as pages). Use this to move plugin CSS and
+ JS files to a CDN.
+sslserver: Server to find static files for a plugin when the page is HTTPS. Defaults
+ to site/server (same as pages). Use this to move plugin CSS and JS files
+ to a CDN.
+path: Path to the plugin files. defaults to site/path + '/plugins/'. Expects that
+ each plugin will have a subdirectory at plugins/NameOfPlugin. Change this
+ if you're using a CDN.
+sslpath: Path to use on the SSL server. Same as plugins/path.
+