Implements the Accounts API for servers with unix accounts on the localhost
machine (same machine as the web server). Should work for local unix
accounts, nis/nis+ accounts, or any PAM oriented accounts that appear as
local accounts on the local machine. The exception is the quota support.
Block for displaying the current user's Facebook stream, with the ability to
filter it using the same Facebook filters available on facebook.com. Also
provides ability to update the current user's status.