message: sort combined typing users by name so order is stable
diff: @@ -191,6 +191,9 @@ module.exports = React.createClass({
  // but have a timeout timer running so they can disappear
  // when a message comes in
  usersTyping = usersTyping.concat(stoppedUsersOnTimer);
  + // sort them so the typing members don't change order when
  + // moved to delayedStopTypingTimers
  + usersTyping.sort((a, b) => a.name.localeCompare(b.name));
  const typingString = WhoIsTyping.whoIsTypingString(
  usersTyping,
  