[TIMOB-2810] Changing table row BG color doesn't redisplay with new color

Example code:

var win = Ti.UI.createWindow({backgroundColor:"white"});

// create table view data object
var rows = [
    Ti.UI.createTableViewRow({title:'Row 1'}),
    Ti.UI.createTableViewRow({title:'Row 2'}),
    Ti.UI.createTableViewRow({title:'Row 3'}),
    Ti.UI.createTableViewRow({title:'Row 4'})
];

var tableview = Titanium.UI.createTableView({
    data:rows
});

var tableRowSelect = function(rows, index, tableView) {
 for (var i=0;i<rows.length;i++) {
   Ti.API.log('Checking row index '+i);
   if(i == index) {
     Ti.API.log('Selected');
     rows[i].backgroundColor = '#fff';
   } else {
     Ti.API.log('Deselected');
     rows[i].backgroundColor = '#d6d6d6';
   }
 }
};

tableview.addEventListener('click', function(e) {
       tableRowSelect(rows, e.index, tableview);
});

win.add(tableview);
win.open();