title: Rails not writing to development log
body: <p>My Rails app (version 4.0.3) is not logging anything in dev. My <code>development.log</code> (as well as <code>test.log</code>) were last touched on 12/12/2013, which is the day I created the project. So logging has evidently <em>never</em> worked in dev or test. (Production seems to be working just fine, FWIW.)</p>
  
  <p>It doesn't seem to be a permissions issue; my log directory is recursively 777'd.</p>
  
  <p>I've restarted my server after ensuring the permissions are good, so it's not that.</p>
  
  <p>Any ideas?</p>