[MOD-2274] iOS: Map Annotation click event doesn't return correct clicksource

var MapModule = require('ti.map');
var win = Ti.UI.createWindow({backgroundColor: 'white'});
var appc = MapModule.createAnnotation({
    latitude: 37.389569,
    longitude: -122.050212,
    title: 'Appcelerator HQ',
    subtitle: 'Mountain View, CA',
    pincolor: MapModule.ANNOTATION_GREEN,
    draggable: true,
    rightButton: Ti.UI.iPhone.SystemButton.CONTACT_ADD
});
var mapview = MapModule.createView({
    mapType: MapModule.HYBRID_TYPE,
    region: {latitude: 37.389569, longitude: -122.050212, latitudeDelta: 0.2, longitudeDelta: 0.2},
    annotations: [appc]
});


mapview.addEventListener('click', function(e){
    Ti.API.info(e.type);
    Ti.API.info(JSON.stringify(e.clicksource));
});

win.add(mapview);
win.open();