message: simpler exports
diff: // browser
  -export { default as BrowserCodeReader } from './browser/BrowserCodeReader';
  +export * from './browser/BrowserCodeReader';
  export * from './browser/BrowserQRCodeReader';
  export * from './browser/BrowserDatamatrixCodeReader';
  export * from './browser/BrowserQRCodeSvgWriter';
  -export { default as HTMLCanvasElementLuminanceSource } from './browser/HTMLCanvasElementLuminanceSource';
  -export { default as VideoInputDevice } from './browser/VideoInputDevice';
  +export * from './browser/HTMLCanvasElementLuminanceSource';
  +export * from './browser/VideoInputDevice';
  export * from './browser/BrowserBarcodeReader';
  // core
  @@ -51,7 +51,7 @@ export { default as GenericGFPoly } from './core/common/reedsolomon/GenericGFPol
  export { default as ReedSolomonDecoder } from './core/common/reedsolomon/ReedSolomonDecoder';
  export { default as ReedSolomonEncoder } from './core/common/reedsolomon/ReedSolomonEncoder';
  -// core/qrcode
  +// core/twod/qrcode
  export { default as QRCodeReader } from './core/qrcode/QRCodeReader';
  export { default as QRCodeWriter } from './core/qrcode/QRCodeWriter';
  