For configuring avatar access.
+dir: Directory to look for avatar files and to put them into.
+ Defaults to avatar subdirectory of install directory; if
+ you change it, make sure to change path, too.
+path: Path to avatars. Defaults to path for avatar subdirectory,
+ but you can change it if you wish. Note that this will
+ be included with the avatar server, too.
server: If set, defines another server where avatars are stored in the
root directory. Note that the 'avatar' subdir still has to be
writeable. You'd typically use this to split HTTP requests on