Language configuration unresponsive

Hi Jan-Bart,

thanks a lot for this great addition to MagicMirror.
It works like a charm.

Only when setting the language to "nl" it doesn't overwrite the default "en".
Tried some tinkering with the nl.json and MMM-NMBS-Connection.js file, but cannot get it to work.

Did someone find a solution for this?

Thanks,
Tom