title: Magento custom language file not being used
body: <p>I have created a custom language file for a feature that I have built into our Magento website. The language variables work fine on my local machine (of course), however on our staging environment it doesn't. My local machine is Windows and staging server is Linux, so obvious answer would be an issue with filename casing, but imho these are right.</p>
  
  <p>I have my own block that overwrites the Mage_Catalog, called <code>Feno_Catalog</code> which works fine. To that config.xml file I've appended some code to load the <code>Feno_Catalog.csv</code>;</p>
  
  <p>/local/Feno/Catalog/etc/config.xml:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="iso-8859-1"?&gt;
  &lt;config&gt;
      &lt;modules&gt;
          &lt;Feno_Catalog&gt;
              &lt;version&gt;0.1.0&lt;/version&gt;
          &lt;/Feno_Catalog&gt;
      &lt;/modules&gt;
      &lt;global&gt;
          &lt;blocks&gt;
              &lt;catalog&gt;
                  &lt;rewrite&gt;
                      &lt;class&gt;Feno_Catalog_Block&lt;/class&gt;
                  &lt;/rewrite&gt;
              &lt;/catalog&gt;
          &lt;/blocks&gt;
          &lt;helpers&gt;
              &lt;catalog&gt;
                  &lt;rewrite&gt;
                      &lt;class&gt;Feno_Catalog_Helper&lt;/class&gt;
                  &lt;/rewrite&gt;
              &lt;/catalog&gt;
          &lt;/helpers&gt;
      &lt;/global&gt;
      &lt;frontend&gt;
          &lt;translate&gt;
              &lt;modules&gt;
                  &lt;Feno_Catalog&gt;
                      &lt;files&gt;
                          &lt;default&gt;Feno_Catalog.csv&lt;/default&gt;
                      &lt;/files&gt;
                  &lt;/Feno_Catalog&gt;
              &lt;/modules&gt;
          &lt;/translate&gt;
      &lt;/frontend&gt;
      &lt;adminhtml&gt;
          &lt;translate&gt;
              &lt;modules&gt;
                  &lt;Feno_Catalog&gt;
                      &lt;files&gt;
                          &lt;default&gt;Feno_Catalog.csv&lt;/default&gt;
                      &lt;/files&gt;
                  &lt;/Feno_Catalog&gt;
              &lt;/modules&gt;
          &lt;/translate&gt;
      &lt;/adminhtml&gt;
  &lt;/config&gt;
  </code></pre>
  
  <p>The CSV file has been put into 2 folders: <code>/app/locale/[de_DE|en_US]/</code> with matching casing.</p>
  
  <p>As I mentioned it works fine on my local machine, but not on the staging server. What could cause this? I've searched for quite a bit and cleared cache (although cache is turned off), switched languages (both languages don't work - The language keys are like "poll_question_a1").</p>
  
  <p>When I move the translations to Mage_Catalog.csv everything also works fine (but of course that is not what I want).</p>
  
  <p>So how to fix? Is there any way to find the cause of this?</p>