title: Rails number_with_delimiter return integer without delimiter
body: <p>I'm usually using <code>number_with_delimiter</code> to make my integer or my decimal more easy to read, I have once problem with it when using it inside controller but it solved that time. Now I don't know what happen actually when I just simply put those function on my <code>view</code> it return <code>integer</code> <strong>without</strong> <code>delimiter</code>.</p>
  
  <p>Please see this simulation I create to show the different.</p>
  
  <pre><code>&lt;td&gt;&lt;%= number_to_currency(stock.qty) %&gt;&lt;/td&gt;
  &lt;td&gt;&lt;%= (number_with_delimiter number_with_precision stock.qty, :precision =&gt; 2) %&gt;&lt;/td&gt;
  &lt;td&gt;&lt;%= number_with_delimiter(stock.qty) %&gt;&lt;/td&gt;
  &lt;td&gt;&lt;%= stock.qty %&gt;&lt;/td&gt;
  </code></pre>
  
  <p>Result:</p>
  
  <pre><code>$100,070.00    100070    100070    100070.0
  </code></pre>
  
  <p>So the <code>number_with_delimiter</code> and <code>number_with_precision</code> isn't working also. The thing also is it just happen to this project while the others projects on my <em>local</em> all doing fine. And also on my other branch of this project also fine. So I know that there is something I broke into. But I don't know which one it is, since I also didn't realize and didn't know which one I make it broken, I can't trace through my version control cause there is too much update on it. Please any help. Thank you so much.</p>