EL8 Support

To fix the white screen you get on EL8 when saving, modify this file:

/usr/local/nagiosxi/html/includes/components/vmwarevmasettingsmanager/vmwarevmasettingsmanager.inc.php

Change this (line 570):

/* Store this vMA Host in the vma_host_settings_list array */

To this:

$vma_host_settings_list = array();
/* Store this vMA Host in the vma_host_settings_list array */

Now go test, it should work.