title: Sequelize.js: how to handle reconnection with MySQL
body: <p>I've always used Mongo with Node, but now due to an existing datasource I need to connect a node app with Mysql.</p>
  
  <p>Sequelize seems a good solution, but I don't get how to handle connection error, reconnection and re-tries.</p>
  
  <p>To check for connection error on first run <code>.authenticate().then().catch(function(error){...});</code>
  But what if I loose connection and want to reconnect?</p>