An example of polling for friends list updates.

  req = LiveJournal::Request::CheckFriends.new(user)
  req.run   # always will return false on the first run.
  loop do
    puts "Waiting for new entries..."
    sleep req.interval   # uses the server-recommended sleep time.
    break if req.run == true
  end
  puts "#{user.username}'s friends list has been updated!"