Adds the update task list to the current page.
function update_task_list($active = NULL) {
// Default list of tasks.
$tasks = array(
'requirements' => 'Verify requirements',
'info' => 'Overview',
'select' => 'Review updates',
'run' => 'Run updates',
'finished' => 'Review log',
);
drupal_add_region_content('sidebar_first', theme('task_list', array(
'items' => $tasks,
'active' => $active,
)));
}