You must make an PHP object that represents a location.

Data:  
	Keep track of how far North you are.
	Keep track of how far West you are.

Operators:
	Create a new location
	$loc = new Location;

	Print a location
	print $loc; // Uses __toString

	Go north
	$loc->goNorth(3)
	$loc->goNorth(-3);

	Go West
	$loc->goWest(3)
	$loc->goWest(-3);

	Go a distance in a direction
	$loc->travel(3.5, 290);  // Go 3.5 about West-North-West

	Distance from the origin
	print $loc->distance();


	Turned in by Wed Sep 16