Added assertions for nested directories.

Author: rmariuzzo

tests/specs/LangJsCommandTest.php

@@ -136,6 +136,7 @@ public function testAllFilesShouldBeConverted()
         $this->assertContains('es.nonameinc::messages', $contents);
         $this->assertContains('ht.nonameinc::messages', $contents);
 
+        $this->assertContains('en.forum.thread', $contents);
 
         $this->cleanupOutputDirectory();