Fixing deserialization of Weather data

src/main/java/no/nibio/vips/model/naerstadmodel/NaerstadModel.java

@@ -275,10 +275,7 @@ public class NaerstadModel extends I18nImpl implements Model{
         initCollections();
         ObjectMapper mapper = new ObjectMapper();
         
-        
-        
-        //List<WeatherObservation> observations = mapper.convertValue(config.getConfigParameter("observations"), new TypeReference<List<WeatherObservation>>(){});
-        List<WeatherObservation> observations = (List<WeatherObservation>) config.getConfigParameter("observations");
+        List<WeatherObservation> observations = this.modelUtil.extractWeatherObservationList(config.getConfigParameter("observations"));
         for(WeatherObservation o:observations)
         {
             switch(o.getElementMeasurementTypeId())