Add German translation + UTF-8 lang files

plugins/serendipity_event_responsiveimages/lang_en.inc.php

@@ -1,11 +1,9 @@
 <?php
 
 /**
- *  @version
- *  @author Translator Name <yourmail@example.com>
- *  EN-Revision: Revision of lang_en.inc.php
+ *  @version 1.0
+ *  @author onli
  */
 
 @define('PLUGIN_EVENT_RESPONSIVE_NAME', 'Responsive Images');
-@define('PLUGIN_EVENT_RESPONSIVE_DESC', 'Use html5 and the s9y backend to scale iamges to the visitors viewport width');
-
+@define('PLUGIN_EVENT_RESPONSIVE_DESC', 'Use HTML5 and the s9y backend to scale images to the visitors viewport width');