Upgrading Checklist 0.10

Checklist

Before	After
w.initialize()	remove, part of new World();
World w=new World(); w.setSystem(new MySystem()); w.setManager(new MyManager()); w.initialize()	WorldConfiguration config= new WorldConfiguration() .setSystem(new MySystem) .setManager(new MyManager()); World w = new World(setup);
extends VoidEntitySystem	extends BaseSystem
EntitySystem with Aspect.getEmpty()	extend BaseSystem instead

see https://github.com/junkdog/artemis-odb/blob/master/CHANGELOG.md for all breaking changes.