This (otherwise awesome) plugin could benefit from reusing locales as defined in Moment.js by slightly altering DatepickerNls :
this.getWeekdays = function(locale) {
if (moment) {
moment.locale(locale);
return moment.weekdays();
}
};
(same for Months)
This would guarantee consistency for apps already using Moment.js, plus provide a vast amount of high-quality translations for DatePicker