AppointmentUtil. isMultiDay always return false about gwt-cal HOT 3 CLOSED

Hi,

There is another issue with isMultiday, the first "if" compare the result of
getDate() with the result of getDay (the former is day of month, the later is 
day of
week).
The patch in attachment also include the modification in CalendarView.java to 
call
setMultiDay() automatically 

I tested with gwt-cal-demo removing all the call likes 
"appt1.setMultiDay(true);" and
it seems ok.

Suggested fix implemented. Comparison logic is in the DateUtils.areOnTheSameDay 
class
to maintain date-based logic centralized as much as possible.