message: Use GeminiScrollbar instead of ScrollPanel
diff: @@ -30,7 +30,7 @@ import classnames from 'classnames';
  import GroupStoreCache from '../../stores/GroupStoreCache';
  import GroupStore from '../../stores/GroupStore';
  import { showGroupAddRoomDialog } from '../../GroupAddressPicker';
  -
  +import GeminiScrollbar from 'react-gemini-scrollbar';
  const RoomSummaryType = PropTypes.shape({
  room_id: PropTypes.string.isRequired,
  @@ -821,7 +821,6 @@ export default React.createClass({
  const GroupAvatar = sdk.getComponent("avatars.GroupAvatar");
  const Loader = sdk.getComponent("elements.Spinner");
  const TintableSvg = sdk.getComponent("elements.TintableSvg");
  - const ScrollPanel = sdk.getComponent("structures.ScrollPanel");
  if (this.state.summary === null && this.state.error === null || this.state.saving) {
  return <Loader />;
  @@ -969,12 +968,9 @@ export default React.createClass({
  { rightButtons }
  </div>
  </div>
  - <ScrollPanel className="mx_GroupView_body"
  - stickyBottom={false}
  - startAtBottom={false}
  - >
  + <GeminiScrollbar className="mx_GroupView_body">
  { bodyNodes }
  - </ScrollPanel>
  + </GeminiScrollbar>
  </div>
  );
  } else if (this.state.error) {
  