message: Keep old behaviour of submitting on enter
  if input is empty
diff: @@ -135,7 +135,10 @@ module.exports = React.createClass({
  } else if (e.keyCode === 13) { // enter
  e.stopPropagation();
  e.preventDefault();
  - if (this.state.queryList.length > 0) {
  + if (this.refs.textinput.value == '') {
  + // if there's nothing in the input box, submit the form
  + this.onButtonClick();
  + } else if (this.state.queryList.length > 0) {
  this.addressSelector.chooseSelection();
  } else {
  const addrType = Invite.getAddressType(this.refs.textinput.value);
  