message: Use busy spinner when requesting teams
diff: @@ -67,6 +67,7 @@ module.exports = React.createClass({
  getInitialState: function() {
  return {
  busy: false,
  + teamServerBusy: false,
  errorText: null,
  // We remember the values entered by the user because
  // the registration form will be unmounted during the
  @@ -104,8 +105,11 @@ module.exports = React.createClass({
  ) {
  this._rtsClient = new RtsClient(this.props.teamServerConfig.teamServerURL);
  + this.setState({
  + teamServerBusy: true,
  + });
  // GET team configurations including domains, names and icons
  - this._rtsClient.getTeamsConfig().done((args) => {
  + this._rtsClient.getTeamsConfig().then((args) => {
  // args = [$request, $body]
  const teamsConfig = {
  teams: args[1],
  @@ -117,6 +121,10 @@ module.exports = React.createClass({
  });
  }, (err) => {
  console.error('Error retrieving config for teams', err);
  + }).finally(() => {
  + this.setState({
  + teamServerBusy: false,
  + });
  });
  }
  },
  @@ -299,6 +307,8 @@ module.exports = React.createClass({
  },
  _getRegisterContentJsx: function() {
  + var Spinner = sdk.getComponent("elements.Spinner");
  +
  var currStep = this.registerLogic.getStep();
  var registerStep;
  switch (currStep) {
  @@ -308,6 +318,10 @@ module.exports = React.createClass({
  case "Register.STEP_m.login.dummy":
  // NB. Our 'username' prop is specifically for upgrading
  // a guest account
  + if (this.state.teamServerBusy) {
  + registerStep = <Spinner />;
  + break;
  + }
  registerStep = (
  <RegistrationForm
  showEmail={true}
  