title: Configure sidekiq to work without brocker in development environment
body: <p>It would've been a nice feature to configure <code>sidekiq</code> to work synchronously on development environment - without installing and starting redis, no retrying and so on <em>though I'm not saying that it is so hard to be done</em></p>
  
  <blockquote>
    <p>For example <a href="http://www.celeryproject.org/" rel="nofollow">celery</a> has this feature as <code>CELERY_ALWAYS_EAGER=True</code> in settings </p>
  </blockquote>
  
  <p>Does sidekiq have a support for this?</p>