switched to productive rest api link

lib/sensorconnector.dart

@@ -5,8 +5,8 @@ import 'package:http/http.dart' as http;
 import 'datamodel.dart';
 
 class SensorConnector {
-  final String baseUrl = 'https://sandbox.sensor.awi.de/rest/';
-  //final String baseUrl = 'https://sensor.awi.de/rest/';
+  //final String baseUrl = 'https://sandbox.sensor.awi.de/rest/';
+  final String baseUrl = 'https://sensor.awi.de/rest/';
   final String loginUrl = 'sensors/contacts/login';
   final String collectionsUrl = 'sensors/collections/getAllCollections?pointInTime=2018-07-03T12%3A30%3A55.389Z';
   final String eventTypesUrl = 'sensors/events/getAllEventTypes';