Fixed Git ignore and added icon

.gitignore

@@ -9,3 +9,4 @@ build
 /data
 /backup
 /output
+*.zip

src/main/java/speiger/src/ui/MapPanel.java

@@ -83,6 +83,7 @@ public class MapPanel extends JPanel {
 	public static void main(String...args) {
 		Toolkit.getDefaultToolkit().setDynamicLayout(false);
 		JFrame frame = new JFrame();
+		frame.setIconImage(new ImageIcon(MapPanel.class.getResource("/assets/images/icon.png")).getImage());
 		frame.setLayout(new BorderLayout());
 		frame.setBounds(0, 0, 800, 600);
 		frame.setTitle("Mario Kart World Progress Tracker");