Added warning status interpretation as required part of Model's meta data

src/main/java/no/bioforsk/vips/model/grassdryingmodel/GrassDryingModel.java

@@ -284,7 +284,7 @@ public class GrassDryingModel  extends I18nImpl implements Model{
                 case WeatherElements.WIND_SPEED_2M:
                     this.FM2.add(o);
                     break;
-                case WeatherElements.RELATIVE_HUMIDITY:
+                case WeatherElements.RELATIVE_HUMIDITY_MEAN:
                     this.UM.add(o);
                     break;
                 case WeatherElements.GLOBAL_RADIATION:
@@ -501,5 +501,15 @@ public class GrassDryingModel  extends I18nImpl implements Model{
             throw new ModelExcecutionException("Only able to estimate initial dry matter fraction from 1st and 2nd harvest.");
         }
     }
+    
+    @Override
+    public String getWarningStatusInterpretation() {
+        return this.getWarningStatusInterpretation(Model.DEFAULT_LANGUAGE);
+    }
+
+    @Override
+    public String getWarningStatusInterpretation(String language) {
+        return "";
+    }
 
 }