$Id

This module requires the ProwlPHP class from: 

http://github.com/Fenric/ProwlPHP/tree/master

To download it, run this command from the prowl module directory:

wget -O ProwlPHP.php "http://github.com/Fenric/ProwlPHP/blob?path%5B%5D=ProwlPHP.php&raw=true"