Make ChecklistActivity extend FragmentActivity instead of normal Activity class
Create new Loader implementation ChecklistItemsCursorLoader, based on com.commonsware.cwac.loaderex.acl.AbstractCursorLoader
Make class ChecklistItemAdapter extend Android Support Library's version of SimpleCursorAdapter
ChecklistActivity: Create new field to store ID for checklist items' cursor's Loader
ChecklistActivity: Change type of field itemListAdapter to android.support.v4.widget.CursorAdapter, so that swapCursor() method can be used later on
ChecklistActivity: Implement LoaderManager.LoaderCallbacks interface. Create instance of ChecklistItemsCursorLoader in onCreateLoader(), and have the itemListAdapter use that cursor in onLoadFinished().
ChecklistActivity: Use Loader framework to populate the checklist, and remove the older code that managed the Cursor directly