[TIMOB-16494] TiAPI: Allow multiple markers in ListView

   function getData(section){
       var data = [];
       
       for (i=0;i<150;i++){
           data.push({
               template:Ti.UI.LIST_ITEM_TEMPLATE_DEFAULT,
               properties: {
                   title:'SECTION '+section+' ITEM '+i,
                   searchableText: 'SECTION '+section+' ITEM '+i
               },
           });
       }
       return data;
   }
   
   function getSections(){
       //BOTH
       var section1 = Ti.UI.createListSection({
           headerTitle:'Section 0 Header',
           footerTitle:'Section 0 Footer'
       });
       //HEADER ONLY
       var section2 = Ti.UI.createListSection({
           headerTitle:'Section 1 Header'
       });
       //FOOTER ONLY
       var section3 = Ti.UI.createListSection({
           footerTitle:'Section 2 Footer'
       });
       //Neither
       var section4 = Ti.UI.createListSection();
       section1.setItems(getData(0));
       section2.setItems(getData(1));
       section3.setItems(getData(2));
       section4.setItems(getData(3));
       
       return [section1,section2,section3,section4];
   }
   
   var win = Ti.UI.createWindow({
       title:'Headers & Footers'
   });
       
   var platformName = Titanium.Platform.osname;
   var isIOS = (platformName == 'iphone' || platformName == 'ipad');
       
   var listView = Ti.UI.createListView({
       top: 20,
       caseInsensitiveSearch: true,
       sections:getSections(),
       headerTitle:'THIS IS LIST VIEW HEADER',
       footerTitle:'THIS IS LIST VIEW FOOTER. SHOULD BE AT BOTTOM'
   });
   listView.addEventListener('marker', function(e) {
   	Ti.API.info("Marker fired: Section " + e.sectionIndex + ", Item:" + e.itemIndex);
   });
   win.add(listView);
   listView.addMarker({sectionIndex: 1, itemIndex: 4});
   listView.addMarker({sectionIndex: 0, itemIndex: 80});
   win.open();