message: Space between sentences in 'leave room' warning
diff: @@ -957,6 +957,7 @@ export default React.createClass({
  if (rule !== "public") {
  warnings.push((
  <span className="warning" key="non_public_warning">
  + {' '/* Whitespace, otherwise the sentences get smashed together */ }
  { _t("This room is not public. You will not be able to rejoin without an invite.") }
  </span>
  ));
  