Bug 275018 [Markers] Problems View / Configure Contents dialog should support rename
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/FiltersConfigurationDialog.java
* Return whether or not deselected elements should have been selected.
	 * 
	 * @return boolean
	 */
	private boolean shouldContinue() {
		if (filtersList.getCheckedElements().length == 0) {
			return MessageDialog.openQuestion(getShell(),
					MarkerMessages.filtersDialogDeselectedFiltersTitle,
					MarkerMessages.filtersDialogDeselectedFiltersMessage);
		}
		return true;
	}
	/**
	 * Remove the filters in selection.
	 * 
	 * @param selection
	 */
	private void removeFilters(ISelection selection) {
		filterGroups.remove(((IStructuredSelection) selection)
				.getFirstElement());
		filtersList.refresh();
		updateAndOrEnblement();
	}
	/**
	 * Save the dialog settings for the receiver.
	 */
	private void saveDialogSettings() {
		IDialogSettings settings = getDialogSettings();
		if (selectedFilterGroup != null)
			settings.put(SELECTED_FILTER_GROUP, selectedFilterGroup.getName());