Gantt Plugin - Calendar Date Format

Hi everyone, I'm having fun incorporating the Gantt Plugin into an existing app however have a question around the date formatting.

Does anyone know if there is a way to show Monday as the first day of the week in the date picker instead of Sunday and also whether the date can be formatted as DD/MM/YYYY instead of MM/DD/YYYY. This is confusing for us poor NZers who are not used to this format!