Bug 210124 [Markers] MarkersView not listening to the build jobs
The markers view needs to listen to the build jobs to show italics when running
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/provisional/views/markers/CachedMarkerBuilder.java
private static final MarkerCategory[] EMPTY_CATEGORY_ARRAY = new MarkerCategory[0];
	private static final int SHORT_DELAY = 100;
	
	private static final int TIME_OUT = 30000;
	private boolean building = true;
	
	private MarkerCategory[] categories;
	private MarkerMap currentMap = null;
	MarkerContentGenerator generator; 
	
	private Job markerProcessJob;
	private IWorkbenchSiteProgressService progressService;
	private Job updateJob;
	
	/**
	 * Create a new instance of the receiver. Update using the updateJob.
	 * 
	 * @param contentGenerator
	 */
	CachedMarkerBuilder(MarkerContentGenerator contentGenerator) {
		this.generator = contentGenerator;
		createMarkerProcessJob();
		
		ResourcesPlugin.getWorkspace().addResourceChangeListener(
				getUpdateListener(),