Array dataSource item observable properties not working

tableRows assigned after line 132  dataTable.fnAddData(unwrappedItems);
will cause bag. Array item with observable properties won't work. (Example: checkbox will not change boolean property of an array item)

Anyway in last pull request I have moved tableRows closer to usage, but forget to remove previous assignment. We need to remove the one below fnAddData.

Sorry for buggy pull request )