Some javadoc warning fixes.

racevisionGame/src/main/java/mock/app/Event.java

@@ -66,6 +66,7 @@ public class Event {
      * Constructs an event, using various XML files.
      * @param singlePlayer Whether or not to create a single player event.
      * @param mapIndex Specifies which map to use.
+     * @param raceLength The length of the race, in milliseconds.
      * @throws EventConstructionException Thrown if we cannot create an Event for any reason.
      */
     public Event(boolean singlePlayer, int mapIndex, int raceLength) throws

racevisionGame/src/main/java/mock/xml/RaceXMLCreator.java

@@ -177,10 +177,10 @@ public class RaceXMLCreator {
     }
 
     /**
-     * gets the destance between two marks
+     * gets the destance between two marks, in nautical miles.
      * @param a mark 1
      * @param b mark 2
-     * @return
+     * @return Distance in nautical miles.
      */
     private static double getDistance(XMLMark a, XMLMark b){
         GPSCoordinate coorda = new GPSCoordinate(a.getTargetLat(), a.getTargetLng());