v2.2.0: Release 2.2.0

export the native window API so native plugins can detect when
games are listening for events on the window object

import devkit.native.Window as nativeWindow;

nativeWindow.on('newListener', function (type, cb) {
  console.log("new native listener for", type);
});

window.addEventListener("devicemotion", function () { ... });

required for devkit-accelerometer v3.0.0