Merge branch '4.4' into 5.0

* 4.4:
  fix unix root dir issue
  sync validator translation files with master
  [HttpFoundation] fix not sending Content-Type header for 204 responses
  [ErrorHandler] silence warning when zend.assertions=-1
  fix anchor
  [Console] Handle zero row count in appendRow() for Table
  fix links to releases page (formerly known as "roadmap")
  [Console] Don't load same-namespace alternatives on exact match found

Author: fabpot

Resources/views/Collector/config.html.twig

@@ -153,7 +153,7 @@
                 <td class="font-normal">{{ collector.symfonyeom }}</td>
                 <td class="font-normal">{{ collector.symfonyeol }}</td>
                 <td class="font-normal">
-                    <a href="https://symfony.com/roadmap?version={{ collector.symfonyminorversion }}#checker">View roadmap</a>
+                    <a href="https://symfony.com/releases/{{ collector.symfonyminorversion }}#release-checker">View roadmap</a>
                 </td>
             </tr>
         </tbody>