Please add HOOK_splashify_config_alter()

I needed to create a module that alters the behavior of splashify to limit the time-window for a splash page to appear (e.g. show on New Year's Day). The most straightforward way to do that was alter the $config variable in splashify.display.inc after it has been read in but before any logic happens. So I did the following:
<?php
$config = _splashify_get_config();
// permit other modules to modify $config
drupal_alter('splashify_config', $config);
>?

Now in my module, I did a hook_form_alter, including submit and validate handers, to manage my configuration settings, and I added a function MYMODULE_splashify_config_alter(&$config) {}, which changes splashify's $config['when_frequency'] to 'never' as appropriate for my application.

Attached is a patch against 7.x-1.x-dev.

Thanks!