Added JSON formatting of dates

src/main/java/no/nibio/vips/entity/WeatherObservation.java

@@ -20,6 +20,7 @@
 package no.nibio.vips.entity;
 
 
+import com.fasterxml.jackson.annotation.JsonFormat;
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import java.util.Date;
 import javax.json.bind.annotation.JsonbDateFormat;
@@ -79,7 +80,7 @@ public class WeatherObservation implements Comparable{
         
     public final void setTimeMeasured(Date timeMeasured) { this.timeMeasured = timeMeasured; }
     
-    //@JsonFormat(shape=JsonFormat.Shape.STRING, pattern="yyyy-MM-dd'T'HH:mm:ssXXX", timezone="UTC") // Java >= 7
+    @JsonFormat(shape=JsonFormat.Shape.STRING, pattern="yyyy-MM-dd'T'HH:mm:ssXXX", timezone="UTC") // Java >= 7
     @JsonbDateFormat(value = "yyyy-MM-dd'T'HH:mm:ssXXX")
     public Date getTimeMeasured() { return this.timeMeasured; }