code: function setWaypoint(collection, waypoint) {
  		angular.forEach(collection, function (value, waypoint) {
  			collection[waypoint] = false;
  		});
  		collection[waypoint] = true;
  	}
docs: Sets all waypoints in the colleciton to false, and sets the indicated waypoint to true.
  
  @param Object collection
  @param String waypoint