Bump version to 0.5.0

Author: almarklein

js/lib/widget.js

@@ -18,7 +18,7 @@ import { DOMWidgetModel, DOMWidgetView } from '@jupyter-widgets/base';
 * this on FF, the animation is not smooth because the image "gets stuck".
 */
 
-export const version = "0.4.4";
+export const version = "0.5.0";
 
 export class RemoteFrameBufferModel extends DOMWidgetModel {
     defaults() {