message: Goto /home when forgetting the last room
diff: @@ -570,6 +570,12 @@ module.exports = React.createClass({
  const allRooms = RoomListSorter.mostRecentActivityFirst(
  MatrixClientPeg.get().getRooms(),
  );
  + if (allRooms.length === 0) {
  + dis.dispatch({
  + action: 'view_home_page',
  + });
  + return;
  + }
  let roomIndex = -1;
  for (let i = 0; i < allRooms.length; ++i) {
  if (allRooms[i].roomId == this.state.currentRoomId) {
  