Bug 129812 [Markers] Enabling problem categorization per default
Build 3.2M5 Recent progress on problem categorization should be made more proeminent by enabling categorization by default. Similar to search view doing hierarchical presentation by default nowadays.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerView.java
ISelection selection = getViewer().getSelection();
		if (selection instanceof IStructuredSelection) {
			updateStatusMessage((IStructuredSelection) selection);
		} else {
			updateStatusMessage(null);
		}
	}
	/**
	 * Updates that message displayed in the status line. If the selection
	 * parameter is <code>null</code> or its size is 0, the status area is
	 * blanked out. If only 1 marker is selected, the status area is updated
	 * with the contents of the message attribute of this marker. In other cases
	 * (more than one marker is selected) the status area indicates how many
	 * items have been selected.
	 * <p>
	 * This method may be overwritten.
	 * </p>
	 * <p>
	 * This method is called whenever a selection changes in this view.
	 * </p>
	 * 
	 * @param selection
	 *            a valid selection or <code>null</code>
	 */
	protected void updateStatusMessage(IStructuredSelection selection) {
		String message = ""; 
		if (selection == null || selection.size() == 0) {
			
			message = updateSummaryVisible();
		} else if (selection.size() == 1) {