message: Show beta testing icon and help message for widgets tile.
diff: @@ -26,6 +26,7 @@ import { _t } from '../../../languageHandler';
  import sdk from '../../../index';
  const ALLOWED_APP_URL_SCHEMES = ['https:', 'http:'];
  +const betaHelpMsg = 'This feature is currently experimental and is intended for beta testing only';
  export default React.createClass({
  displayName: 'AppTile',
  @@ -157,6 +158,7 @@ export default React.createClass({
  <div className="mx_AppTileMenuBar">
  {this.formatAppTileName()}
  <span className="mx_AppTileMenuBarWidgets">
  + <span className="mx_Beta" alt={betaHelpMsg} title={betaHelpMsg}>&#946;</span>
  {/* Edit widget */}
  {showEditButton && <img
  src="img/edit.svg"
  