Bug 214649 [Markers] Allow markerAttributeGroupings and markerGroups to be specified within contentGenerators
With everything at the top level it is hard to see the relation to a contentGenerator and the groups and attribute groupings. These should be sub elements a la menus.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerGroup.java
private IConfigurationElement configurationElement;
	private String id;
	/**
	 * Create a new instance of the receiver called name with id identifier.
	 * 
	 * @param element
	 */
	public MarkerGroup(IConfigurationElement element) {
		configurationElement = element;
		if (element != null) 
			id = element.getAttribute(MarkerSupportConstants.ATTRIBUTE_ID);
		createFields();
	}
	/**
	 * Create the fields for the marker views.
	 */
	protected void createFields() {
		field = new FieldGroup(this);
		markerField = new GroupMarkerField(this);
	}
	/**
	 * Add the entry for the markerType.
	 * 
	 * @param markerType
	 * @param entry
	 */
	private void addEntry(String markerType, EntryMapping entry) {
		MarkerType[] allDerived = getMarkerTypes(markerType);
		for (int i = 0; i < allDerived.length; i++) {
			Collection entries = new HashSet();