message: Center loading spinner.
diff: @@ -496,7 +496,7 @@ export default class AppTile extends React.Component {
  if (this.props.show) {
  const loadingElement = (
  - <div className='mx_AppTileBody mx_AppLoading'>
  + <div>
  <MessageSpinner msg='Loading...' />
  </div>
  );
  @@ -511,7 +511,7 @@ export default class AppTile extends React.Component {
  );
  } else {
  appTileBody = (
  - <div className={this.state.loading ? 'mx_AppTileBody mx_AppLoading' : 'mx_AppTileBody'}>
  + <div className={'mx_AppTileBody ' + (this.state.loading ? 'mx_AppLoading' : '')}>
  { this.state.loading && loadingElement }
  { /*
  The "is" attribute in the following iframe tag is needed in order to enable rendering of the
  