/*** this is shell
<?php
Class DealsShell extends Shell {


    var $tasks = array('Teambuy', 'Dealticker', 'Swarmjam');

    function main() {
        echo "in main\n";
        foreach ($this->tasks as $task) {
            echo "executing $task\n";
            $this->$task->execute();
        }
    }
}
/*** this is task
class TeambuyTask extends Shell {
    public $uses = array('Showreel.Deal', 'Showreel.Teambuy');

...
..
}