editing + I18N

• Creating an instance of given Class : a form is displayed; create a new unique URI every time
• RDF Cache (Jena TDB) : retrieve URI, download and store URI only if corresponding graph is empty
• URI and blank nodes are clickable
• simple search
• I18N for labels and tooltips
• HTML < datalist > for class uris and starting URI's
• When there is no rdfs:domain for a property P, we infer that P applies to every class in this ontology ( questionable, will be removed)