Fixed map glitch when race starts, and race XML bug

- Race XML wasn't being sent to clients, this was causing a null ptr exception
- Boat location was being set to an invalid lat/lng

Tags: #story[1047]

src/main/java/seng302/controllers/CanvasController.java

@@ -420,6 +420,7 @@ public class CanvasController {
      */
     private void findMinMaxPoint() {
         List<Limit> sortedPoints = new ArrayList<>();
+
         for (Limit limit : ClientPacketParser.getXmlObject().getRaceXML().getCourseLimit()) {
             sortedPoints.add(limit);
         }