title: difference between three development modes in rails
body: <p>What are the difference between three modes in rails like:-</p>
  
  <pre><code> In development mode, Rails reloads models each time a browser sends in a request,
   so the model will always reflect the current database schema.
  </code></pre>
  
  <p><strong>EDIT</strong>
  I was asking about the other differences. I mentioned one i was looking for other list of differences...!!</p>