title: Redis::CannotConnectError (Error connecting to Redis on localhost:6379 (Errno::ECONNREFUSED)):
body: <p>On my heroku I get error </p>
  
  <pre><code>Redis::CannotConnectError (Error connecting to Redis on localhost:6379 (Errno::ECONNREFUSED)):
  2016-04-14T09:25:04.155091+00:00 app[web.1]:   app/controllers/users         /registrations_controller.rb:123:in `send_confirmation_email'
  2016-04-14T09:25:04.155092+00:00 app[web.1]:   app/controllers/users/registrations_controller.rb:49:in `daycare'
  </code></pre>
  
  <p>I also add addon <code>Redis to go</code></p>