[AC-1506] Ti.Calendar.Event.begin / end takes one day earlier than the given date on android

var moment = require("alloy/moment");
var calendar = OS_IOS ? Ti.Calendar.defaultCalendar : Ti.Calendar.selectableCalendars[0];

var details = {
    title: "Event is recorded with wrong date",
    description: "one day earlier form given date",
    begin: moment.unix("1415976478").toDate(), //Fri, 14 Nov 2014
    end: moment.unix("1415976478").toDate(), //Fri, 14 Nov 2014
    allDay: true
};
var event = calendar.createEvent(details);
if(OS_IOS){
event.save(Ti.Calendar.SPAN_THISEVENT);
}