Restructure node examples folder structure to look more realistic.

- Updates PlayerSpec's require statement to match folder structure change

lib/jasmine-core/example/node_example/spec/jasmine_examples/PlayerSpec.js

@@ -1,6 +1,6 @@
 describe("Player", function() {
-  var Player = require('../src/Player.js');
+  var Player = require('../../lib/jasmine_examples/Player');
-  var Song = require('../src/Song.js');
+  var Song = require('../../lib/jasmine_examples/Song');
   var player;
   var song;