Added missing property

src/main/java/de/thm/arsnova/entities/Question.java

@@ -34,6 +34,7 @@ public class Question {
 	private long timestamp;
 	private int number;
 	private int duration;
+	private boolean showStatistic; // sic
 	private String _id;
 	private String _rev;
 
@@ -141,6 +142,14 @@ public class Question {
 		this.duration = duration;
 	}
 
+	public boolean isShowStatistic() {
+		return showStatistic;
+	}
+
+	public void setShowStatistic(boolean showStatistic) {
+		this.showStatistic = showStatistic;
+	}
+
 	public final String get_id() {
 		return _id;
 	}