Set controller class correctly

sb4e.examples/resources/no/tobask/sb4e/examples/GreatFxml.fxml

@@ -4,7 +4,7 @@
 <?import javafx.scene.control.Label?>
 <?import javafx.scene.layout.AnchorPane?>
 
-<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8.0.151" xmlns:fx="http://javafx.com/fxml/1" fx:controller="GreatFxmlController.java">
+<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8.0.151" xmlns:fx="http://javafx.com/fxml/1" fx:controller="no.tobask.sb4e.examples.GreatFxmlController">
    <children>
       <Button layoutX="58.0" layoutY="296.0" mnemonicParsing="false" text="Button" fx:id="button" />
       <Label layoutX="350.0" layoutY="200.0" text="Label" />