Reimplemented race position in the race view. Removed Boat class and Yacht class is replaced completely. Race position "-" shows properly on start screen. Removed BoatTest and TeamsParserTest. Fixed estimated time till finish on server.

#story[818]

src/main/java/seng302/server/simulator/Boat.java

@@ -120,6 +120,6 @@ public class Boat {
 	}
 
 	public long getEstimatedTimeTillFinish(){
-		return (long) (getSpeed()) + System.currentTimeMillis();
+		return (long) (-getSpeed()) + System.currentTimeMillis();
 	}
 }