message: Update the readme with Application example
diff: @@ -125,48 +125,38 @@ before submitting changes.
  ### Basic Usage Example ###
  ```js
  -// You can use either `new PIXI.WebGLRenderer`, `new PIXI.CanvasRenderer`, or `PIXI.autoDetectRenderer`
  -// which will try to choose the best renderer for the environment you are in.
  -var renderer = new PIXI.WebGLRenderer(800, 600);
  +// The application will create a renderer using WebGL, if possible,
  +// with a fallback to a canvas render. It will also setup the ticker
  +// and the root stage PIXI.Container.
  +var app = new PIXI.Application();
  -// The renderer will create a canvas element for you that you can then insert into the DOM.
  -document.body.appendChild(renderer.view);
  -
  -// You need to create a root container that will hold the scene you want to draw.
  -var stage = new PIXI.Container();
  -
  -// Declare a global variable for our sprite so that the animate function can access it.
  -var bunny = null;
  +// The application will create a canvas element for you that you
  +// can then insert into the DOM.
  +document.body.appendChild(app.view);
  // load the texture we need
  PIXI.loader.add('bunny', 'bunny.png').load(function(loader, resources) {
  +
  // This creates a texture from a 'bunny.png' image.
  - bunny = new PIXI.Sprite(resources.bunny.texture);
  + var bunny = new PIXI.Sprite(resources.bunny.texture);
  - // Setup the position and scale of the bunny
  - bunny.position.x = 400;
  - bunny.position.y = 300;
  + // Setup the position of the bunny
  + bunny.x = app.renderer.width / 2;
  + bunny.y = app.renderer.height / 2;
  - bunny.scale.x = 2;
  - bunny.scale.y = 2;
  + // Rotate around the center
  + bunny.anchor.x = 0.5;
  + bunny.anchor.y = 0.5;
  // Add the bunny to the scene we are building.
  - stage.addChild(bunny);
  -
  - // kick off the animation loop (defined below)
  - animate();
  -});
  -
  -function animate() {
  - // start the timer for the next animation loop
  - requestAnimationFrame(animate);
  + app.stage.addChild(bunny);
  + // Listen for frame updates
  + app.ticker.add(function() {
  // each frame we spin the bunny around a bit
  bunny.rotation += 0.01;
  -
  - // this is the main render call that makes pixi draw your container and its children.
  - renderer.render(stage);
  -}
  + });
  +});
  ```
  ### How to build ###
  