* commit '34bc73dff1f0c8402da3fc9bd1f0175bddcaa842': Revert "Make implementation of isEmpty consistent with implementation of getCount in HeaderListViewAdapter"
* commit '34bc73dff1f0c8402da3fc9bd1f0175bddcaa842': Revert "Make implementation of isEmpty consistent with implementation of getCount in HeaderListViewAdapter"