Bug 110998 [Problems] Remove the working set selection and switch to using global working sets
M2 We need to remove the working sets option in the filter and switch to using the current list of working sets. We should move this to a preference that says only "Use Working Sets"
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerView.java
* 
	 * @return <code>true</code> if hierarchal mode is being shown
	 */
	public boolean isHierarchalMode() {
		return false;
	}
	/**
	 * Return the TableSorter
	 * 
	 * @return TableSorter
	 */
	public TableSorter getTableSorter() {
		return (TableSorter) getViewer().getSorter();
	}
	/**
	 * Add a listener for the end of the update.
	 * @param listener
	 */
	public void addUpdateFinishListener(IJobChangeListener listener) {
		updateJob.addJobChangeListener(listener);
	}
	/**
	 * Remove a listener for the end of the update.
	 * @param listener
	 */
	public void removeUpdateFinishListener(IJobChangeListener listener) {
		updateJob.removeJobChangeListener(listener);
	}
}