Correct stop context for detail page

Author: nicoverbruggen

app/controllers/StationController.php

@@ -83,9 +83,12 @@ public function specificTrain($station_id, $liveboard_id){
                                 "delay" =>  "http://semweb.mmlab.be/ns/rplod/delay",
                                 "platform" => "http://semweb.mmlab.be/ns/rplod/platform",
                                 "scheduledDepartureTime" => "http://semweb.mmlab.be/ns/rplod/scheduledDepartureTime",
-                                "stop" => "http://semweb.mmlab.be/ns/rplod/stop",
                                 "headsign" => "http://vocab.org/transit/terms/headsign",
                                 "routeLabel" => "http://semweb.mmlab.be/ns/rplod/routeLabel",
+                                "stop" => array(
+                                    "@id" => "http://semweb.mmlab.be/ns/rplod/stop",
+                                    "@type" => "@id"
+                                ),
                             );
                             return array("@context" => $context, "@graph" => $graph);
                         }