IDE configuration change: DOSBox-X will no longer enable Teritary and
Quaternary by default, while it will still enable Primary and Secondary
by default. The reason, is that having only a Primary interface, or
having a Primary and Secondary interface, was far more common than
having the Teritary and Quaternary interfaces. If you still want the
Teritary/Quaternary, just add enable=true under the section related to
those IDE interfaces.