[TIMOB-27625] Android: Setting picker's minDate/maxDate after opening window not correctly applied

When you set maxDate twice on a Ti.UI.Picker the first maxDate is still the maximum date I can set. *To reproduce*

Press "Set Max Date"

Try to set the picker to the new maxDate

var maxDate = new Date();

var window = Ti.UI.createWindow({
  layout: "vertical",
  backgroundColor: "#454441"
});

var picker = Ti.UI.createPicker({
  type: Ti.UI.PICKER_TYPE_DATE,
  maxDate: maxDate
});
window.add(picker);

var button = Ti.UI.createButton({
  title: "Set Max Date"
});
button.addEventListener("click", function() {
  picker.maxDate = new Date(maxDate.getFullYear() + 1, maxDate.getMonth(), maxDate.getDate());
});
window.add(button);

window.open();

*Expected behavior* The user is able to set the date to the new maxDate. *Actual behavior* The picker keeps resetting to the first maxDate. *Note* I think this is because the TiUIDatePicker class is using a maxDate variable (I think minDate has the same problem) to check if a date change is allowed (line 165), but it's only updating this property in processProperties and not in propertyChanged. I'm able to work around this issue by setting a high maxDate at initialization before I start updating the maxDate. This confirms my suspicion above.