Return all annotation triples.
Fix WFE-1131. Improve detecting root folders and resources.
HEAD returns error on 404.
Make AnnotationTriple serializable.
Change the annotable interface.
Works for not merged triples.
Can set the property.
Don't fail if property is null.
isMerge
Object is an RDF node if it represents a valid absolute URI.
Don't panic if a resource type is a literal.
Move the method to utilities.
Add convenience methods.
Make UMS serializable.
Update cached lists. Return all folders, sorted.
getPath
sort folders by path not name.
Recalculate root folders and resources when a folder is deleted.
Fix deleting the folder entry.
Fix Statement#matches()