Tapping on the week number sends the DatePicker to epoch start.

bug:4093343

1. If getting a day from location in a week view fails
   the out date was cleared but the client was unaware
   of that failure. I have added a return value indicating
   where getting the day from locations was successfull.

Change-Id: I566a9ee33dfe2e64300a4b50dacc652114e01442