message: fix Core.js to avoid exception
diff: @@ -32,7 +32,8 @@ export default class Core extends Component {
  .off('remove order', this.updateOrders)
  .off('new order request', this.updateOrders)
  - SwapApp.services.room.off('peer joined', actions.ipfs.userLeft)
  + //TODO: There is no off method
  + //SwapApp.services.room.connection.off('peer joined', actions.ipfs.userLeft)
  }
  setIpfs = () => {
  