message: Add class to EventTile Line's that are quotes
diff: @@ -592,7 +592,7 @@ module.exports = withMatrixClient(React.createClass({
  <div className={classes}>
  { avatar }
  { sender }
  - <div className="mx_EventTile_line">
  + <div className="mx_EventTile_line mx_EventTile_quote">
  <a href={permalink} onClick={this.onPermalinkClicked}>
  { timestamp }
  </a>
  