title: Cakephp 3 - Plugin - translation file - not working
body: <p>Using Cake version 3.4.5 :</p>
  
  <p>1) I've wrote a plugin :</p>
  
  <pre><code>/plugins/Accounting/
  </code></pre>
  
  <p>2) then, to create the pot file from the view files I run :</p>
  
  <pre><code>bin/cake i18n extract --plugin Accounting
  </code></pre>
  
  <p>3) this generates /plugins/Accounting/src/Locale/default.pot</p>
  
  <p>But the translated text does not appear.
  My locale is es_AR, and I've tried to copy the file as :</p>
  
  <pre><code>/plugins/Accounting/src/Locale/accounting.pot
  </code></pre>
  
  <p>or</p>
  
  <pre><code>/plugins/Accounting/src/Locale/es_AR/default.pot 
  </code></pre>
  
  <p>or </p>
  
  <pre><code>/plugins/Accounting/src/Locale/es_AR/accounting.pot 
  </code></pre>
  
  <p>Also tried to save the files as accounting.po, but nothing happens</p>
  
  <p>But still not text is translated from the plugin views (it does work for the app's views).</p>