[TIMOB-15391] iOS: Ti.Contacts.requestAuthorization always returns e.success=true in the callback, even if the users doesn't allow

var win = Ti.UI.createWindow({
    backgroundColor : '#ffffff'
});

var lbl = Ti.UI.createLabel({
    text : "click to add a contact"
});
win.add(lbl);

lbl.addEventListener('click', function(e) {
    var performAddressBookFunction = function() {
        Ti.Contacts.createPerson({
            firstName : 'John',
            lastName : 'Doe',
            organization : 'Appcelerator',
            phone : {
                mobile : ['07900 000001', '07900 000002']
            }
        });
    };
    var addressBookDisallowed = function() {
        alert("not allowed");
    };
    if (Ti.Contacts.contactsAuthorization == Ti.Contacts.AUTHORIZATION_AUTHORIZED) {
        performAddressBookFunction();
    } else if (Ti.Contacts.contactsAuthorization == Ti.Contacts.AUTHORIZATION_UNKNOWN) {
        Ti.Contacts.requestAuthorization(function(e) {
            if (e.success) {
                performAddressBookFunction();
            } else {
                addressBookDisallowed();
            }
        });
    } else {
        addressBookDisallowed();
    }
});
win.open();