General code tidy up (Visualiser)

- access modifiers adjusted
- unused declarations removed
- spelling fixes
- removed redundant code

visualiser/src/main/java/seng302/Mock/BoatXMLReader.java

@@ -9,7 +9,6 @@ import seng302.XMLReader;
 import javax.xml.parsers.ParserConfigurationException;
 import java.io.IOException;
 import java.io.InputStream;
-import java.text.ParseException;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -28,7 +27,6 @@ public class BoatXMLReader extends XMLReader {
      * @throws IOException error
      * @throws SAXException error
      * @throws ParserConfigurationException error
-     * @throws ParseException error
      */
     public BoatXMLReader(String filePath) throws IOException, SAXException, ParserConfigurationException {
         this(filePath, true);
@@ -41,7 +39,6 @@ public class BoatXMLReader extends XMLReader {
      * @throws IOException error
      * @throws SAXException error
      * @throws ParserConfigurationException error
-     * @throws ParseException error
      */
     public BoatXMLReader(String filePath, boolean read) throws IOException, SAXException, ParserConfigurationException {
         super(filePath);

visualiser/src/main/java/seng302/Mock/StreamedCourseXMLReader.java

@@ -81,7 +81,6 @@ public class StreamedCourseXMLReader extends XMLReader {
 
     /**
      * reads
-     * @throws ParseException error
      * @throws StreamedCourseXMLException error
      */
     private void read() throws StreamedCourseXMLException {
@@ -92,7 +91,6 @@ public class StreamedCourseXMLReader extends XMLReader {
 
     /**
      * reads a race
-     * @throws ParseException error
      */
     private void readRace() {
         DateTimeFormatter dateFormat = DateTimeFormatter.ISO_OFFSET_DATE_TIME;

visualiser/src/main/java/seng302/Model/Boat.java

@@ -81,7 +81,6 @@ public class Boat {
     /**
      * Adds a new point to boat's track.
      * @param coordinate of point on track
-     * @return whether add is successful
      * @see seng302.Model.TrackPoint
      */
     public void addTrackPoint(GPSCoordinate coordinate) {

visualiser/src/main/java/seng302/Model/BoatInRace.java

@@ -285,7 +285,6 @@ public class BoatInRace extends Boat {
     /**
      * Adds a new point to boat's track.
      * @param coordinate of point on track
-     * @return whether add is successful
      * @see seng302.Model.TrackPoint
      */
     public void addTrackPoint(GPSCoordinate coordinate) {