ENUM. Default: 2, 'month'
The view that the datetimepicker should show when it is opened. Accepts values of :
'hour' for the hour view 'day' for the day view 'month' for month view (the default) 'year' for the 12-month overview 'decade' for the 10-year overview. Useful for date-of-birth datetimepickers.
@author Joshua Godi
@see org.gwtbootstrap3.extras.datetimepicker.client.ui.base.constants.DateTimePickerView