title: How do I run CodeIgniter migrations?
body: <p>I know how to create them via <a href="http://codeigniter.com/user_guide/libraries/migration.html" rel="noreferrer">http://codeigniter.com/user_guide/libraries/migration.html</a></p>
  
  <p>But once I've created my migration files, how do I run them?</p>