[changed] simplified SpriteBatch. There's only one begin() method anymore. If you...

[changed] simplified SpriteBatch. There's only one begin() method anymore. If you construct a new SpriteBatch its projection and transform matrix will create a pixel perfect viewport with the origin in the bottom left, y-axis pointing upwards. If you need your own matrices use SpriteBatch.setProjectionMatrix()/setTransformMatrix(). These can not be set within a begin()/end() block.
[removed] Sprite2. Nate wins :) (Altough it's a 50/50 achievement)
[fixed] Group and Stage use new matrix methods of SpriteBatch now. Much cleaner.