Send event_alarms to Mail as Default in Kronolith prefs.php

If you want to receive your event alarms by email as default with Kronolith set the following in kronolith/config/prefs.php:

$_prefs['event_alarms'] = array(
   'value' => 'a:1:{s:4:"mail";a:1:{s:5:"email";s:0:"";}}'
);