Bug fix for stepToTapRowInTableViewWithAccessibilityLabel:atIndexPath:

If a cell is not completely visible, the tapAtPoint: executed at the end of the method might actually tap something outside of the tableView. For example, if the chosen cell is barely visible at the bottom of the table view and a tab bar is under the tableView, using the method will cause the middle of the tab bar to be tapped instead of the desired cell. The same thing could happen if a table view was scrolled so the top cell is just barely visible - then the navigation bar or status bar could be tapped instead of the desired cell.