Revert "Change behaviour of language links to fix #1052"

This reverts commit 5718157f.

templates/index.html

@@ -63,11 +63,7 @@
 
 {% for lang_code, lang_name in languages %}
     {% language lang_code %}
-      <form style="display:inline;" name="setLang{{ lang_name }}" action="/i18n/setlang/" method="POST">{% csrf_token %}
-	  <input name="next" type="hidden" value="/" />
-	  <input type="hidden" name="language" value="{{ lang_code }}" />
-	  <a href="#" onclick="document.setLang{{ lang_name }}.submit();return false;">{{ lang_name }}</a>
-      </form>
+    <a href="{% url 'documentation_trans' %}">{{ lang_name }}</a>
     {% endlanguage %}
 {% endfor %} 
         </span>