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/MarkerSupportRegistry.java
private static final String NAME = "name"; 
	private static final Object ON_ANY = "ON_ANY"; 
	private static final Object ON_ANY_IN_SAME_CONTAINER = "ON_ANY_IN_SAME_CONTAINER";
	private static final Object ON_SELECTED_AND_CHILDREN = "ON_SELECTED_AND_CHILDREN";
	private static final Object ON_SELECTED_ONLY = "ON_SELECTED_ONLY"; 
	private static final Object PROBLEM_FILTER = "problemFilter";
	private static final String SCOPE = "scope"; 
	private static final String SELECTED_TYPE = "selectedType"; 
	private static final String SEVERITY = "severity";
	private static final Object SUB_CATEGORY_PROVIDER = "subCategoryProvider"; 
	private static final String MARKER_TYPE_REFERENCE = "markerTypeReference"; 
	private static final String CLASS = "class";
	private static final Object MARKER_CATEGORY = "markerCategory";
	private static final Object HIERARCHY = "hierarchy";
	private static final String HIERARCHY_REFERENCE = "hierarchyReference";
	private static final String TYPE = "type";
	private static final String PROJECT = "PROJECT";
	private static final String PATH = "PATH";
	private static final String MESSAGE = "MESSAGE";
	private static final String SUBCATEGORY = "SUBCATEGORY";
	private static final String RESOURCE = "RESOURCE";
	private static final String SEVERITY_HIERARCHY = "SEVERITY";
	private static final String DIRECTION = "direction";
	private static final String ASCENDING = "ASCENDING"; 
	private static MarkerSupportRegistry singleton;
	
	private static Object creationLock = new Object();
	/**
	 * Get the instance of the registry.
	 *