First stab at cache management backend. Everything seems to have been tested and working so far, but a number of things require a more specialized cache and can't go through the framework (e.g. user ranks which use references to map usernames to user IDs)

<?php
class Text_Wiki_Render_Plain_Tighten extends Text_Wiki_Render {
    
    
    function token()
    {
        return '';
    }
}
?>