updateCalendars: inline test for singleDatePicker
updateCalendars: inline test for singleDatePicker

just inserted inline the test for singleDatePicker for rendering the right calendar.
Linjith/bootstrap-daterangepicker,bilaliqbalr/bootstrap-daterangepicker-comparison,bilaliqbalr/bootstrap-daterangepicker-comparison,Linjith/bootstrap-daterangepicker