[TIMOB-14286] iOS: Calendar future occurrences are not deleted

//Creating a recurring event with alerts
var event_added; //keep track of the event you added

function performCalendarWriteFunctions(){
    var defCalendar = Ti.Calendar.defaultCalendar;
    var date1 = new Date(new Date().getTime() + 3000),
        date2 = new Date(new Date().getTime() + 900000);
    Ti.API.info('Date1 : '+ date1 + 'Date2 : '+ date2);
    var event1 = defCalendar.createEvent({
        title: 'MyTests: Sample Event',
        notes: 'This is a test event which has some values assigned to it.',
        location: 'Appcelerator Inc',
        begin: date1,
        end: date2,
        availability: Ti.Calendar.AVAILABILITY_FREE,
        allDay: false,
    });
    var alert1 = event1.createAlert({
        relativeOffset:-(60201000), //20 minutes before
    });
    var allAlerts = new Array(alert1);
    event1.alerts = allAlerts;
    var newRule = event1.createRecurenceRule({
        frequency: Ti.Calendar.RECURRENCEFREQUENCY_MONTHLY,
        interval: 2
    });     // every two months
    Ti.API.info('newRule : '+ newRule);
    event1.recurrenceRules = [newRule];
    Ti.API.info('Going to save event now');
    event1.save(Ti.Calendar.SPAN_FUTUREEVENTS);

event_added = event1.id;
}

var win = Ti.UI.createWindow({
    backgroundColor: 'white',
    title: 'Calendar Demo',
    layout:'vertical'
});

var btn1 = Ti.UI.createButton({
    title:'Create event',
    width:Ti.UI.SIZE, height:Ti.UI.SIZE,
    top:50
});
var btn2 = Ti.UI.createButton({
    title:'Delete event',
    width:Ti.UI.SIZE, height:Ti.UI.SIZE,
    top:30
});

win.add(btn1);
win.add(btn2);

btn1.addEventListener('click', function(e){
    performCalendarWriteFunctions();
});

btn2.addEventListener('click', function(e){
    var defCalendar = Ti.Calendar.defaultCalendar;
    var event = defCalendar.getEventById(event_added);
    Ti.API.error('event is: ' + event);
    if (event != null)
    {
        Ti.API.info('deleting: ' + event_added);
        event.remove(Ti.Calendar.SPAN_FUTUREEVENTS);
    }
    else
    {
        alert('could not delete this event because it does not exist!');
    }
});

if(Ti.Calendar.eventsAuthorization == Ti.Calendar.AUTHORIZATION_AUTHORIZED) {
    //performCalendarWriteFunctions();
} else {
    Ti.Calendar.requestEventsAuthorization(function(e){
            if (e.success) {
                //performCalendarWriteFunctions();
            } else {
                alert('Access to calendar is not allowed');
            }
        });
}
win.open();

��Jun 19 11:43:21 lAlO AppLeak[743] <Warning>: [INFO] Date1 : Wed Jun 19 2013 11:43:24 GMT-0500 (CDT)Date2 : Wed Jun 19 2013 11:58:21 GMT-0500 (CDT)
��Jun 19 11:43:21 lAlO AppLeak[743] <Warning>: [INFO] newRule : [object TiCalendarRecurrenceRule]
��Jun 19 11:43:21 lAlO AppLeak[743] <Warning>: [INFO] Going to save event now
��Jun 19 11:43:29 lAlO AppLeak[743] <Warning>: [INFO] event is: [object 3C241C03-7423-44ED-8901-C70340F92B6C:C1F4CEE0-C3EB-4AA5-8D2F-5B5D6B894C9E]
��Jun 19 11:43:29 lAlO AppLeak[743] <Warning>: [INFO] deleting: 3C241C03-7423-44ED-8901-C70340F92B6C:C1F4CEE0-C3EB-4AA5-8D2F-5B5D6B894C9E