Add IO pub. status update via REST API. (#1623)

Added functionality to the information object update REST API endpoint
to allow an information object's publication status to be changed.

plugins/arRestApiPlugin/modules/api/actions/informationobjectsUpdateAction.class.php

@@ -239,6 +239,17 @@ protected function processField($field, $value)
                     $this->io->levelOfDescriptionId = $term->id;
                 }
 
+                break;
+
+        case 'published':
+                if ($value) {
+                    $publicationStatus = 'Published';
+                } else {
+                    $publicationStatus = 'Draft';
+                }
+
+                $this->io->setPublicationStatusByName($publicationStatus);
+
                 break;
         }
     }