Adds prefix for dcterms to module (#757)

fixes: https://github.com/Islandora/documentation/issues/1412

islandora.module

@@ -51,6 +51,7 @@ function islandora_rdf_namespaces() {
   return [
     'ldp'  => 'http://www.w3.org/ns/ldp#',
     'dc11' => 'http://purl.org/dc/elements/1.1/',
+    'dcterms' => 'http://purl.org/dc/terms/',
     'nfo' => 'http://www.semanticdesktop.org/ontologies/2007/03/22/nfo/v1.1/',
     'ebucore' => 'http://www.ebu.ch/metadata/ontologies/ebucore/ebucore#',
     'fedora' => 'http://fedora.info/definitions/v4/repository#',

tests/src/Functional/JsonldSelfReferenceReactionTest.php

@@ -28,7 +28,7 @@ class JsonldSelfReferenceReactionTest extends IslandoraFunctionalTestBase {
       ->setBundleMapping(['types' => $types])
       ->setFieldMapping('created', $created_mapping)
       ->setFieldMapping('title', [
-        'properties' => ['dc:title'],
+        'properties' => ['dcterms:title'],
         'datatype' => 'xsd:string',
       ])
       ->save();