title: Including rake tasks in gems
body: <p>1) Is there a 'best' place for rake tasks inside of gems?  I've seen them in <code>/tasks</code>, <code>/lib/tasks</code>, and I've seen them written as <code>*.rb</code> and <code>*.rake</code> -- not sure which (if any) is 'correct'</p>
  
  <p>2)  How do I make them available to the app once the gem is configured in the environment?</p>