I had accidentally broken the raceXML construction - fixed it.

Fixed a few issues where boat didn't have nextMark/previousMark times under certain circumstances.
LatestMessages wasn't actually notifying properly - fixed.
The various XML readers now treat a string constructor as containing file contents, not file name - this was how it was mostly already used.
Fixed some issues in RaceXMLReader, including where element.getChildNodes() was used instead of element.getElementsByName(...).
Boat: changes speed to a doubleProperty. Changed leg to a Property<Leg>.
Race.lastFps is now an IntegerProperty.
Added breaks to the case statements in VisualiserInput. Whoops.
ResizableRaceCanvas now handles drawing the race boundary. Tidied up code a bit.
Removed ResizableRaceMap.

Started refactoring Sparkline. Currently doesn't work.

racevisionGame/src/main/resources/visualiser/scenes/finish.fxml

@@ -3,7 +3,7 @@
 <?import javafx.scene.control.*?>
 <?import javafx.scene.layout.*?>
 <?import javafx.scene.text.Font?>
-<AnchorPane fx:id="finishWrapper" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" visible="false" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="seng302.Controllers.FinishController">
+<AnchorPane fx:id="finishWrapper" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" visible="false" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="visualiser.Controllers.FinishController">
     <children>
         <GridPane fx:id="start" alignment="CENTER" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" prefHeight="600.0" prefWidth="780.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
             <columnConstraints>