Outputs xml data representing recent information or a profile.
Can be passed 4 subactions which decide what is output:
'recent' for recent posts,
'news' for news topics,
'members' for recently registered members,
'profile' for a member's profile.
To display a member's profile, a user id has to be given. (;u=1)
Outputs an rss feed instead of a proprietary one if the 'type' $_GET
parameter is 'rss' or 'rss2'.
Accessed via ?action=.xml.
Does not use any templates, sub templates, or template layers.
uses Stats language file.