Add cozu preview

Source/assets/html/code.twig

@@ -27,6 +27,12 @@
         {% if page.otherV %}
             <div style='text-align: center; font-size: 22px; '><a href='?page=code&id={{ code.idc }}&lang={{ code.lang }}'>View version's history</a></div>
         {% endif %}
+        <div id='QOZU_box'>Se necesita tener JavaScript habilitado para poder ver los comentarios de la web.</div>
+        <script type="text/javascript">
+            var webpageid = 6; /* Webpage id, in all your website,the same */
+            var uniqueid = 0; /* Post/url id, every site you want different comments, an unique ID, 0 as default */
+        </script>
+        <script src="http://qozu.jkanetwork.com/comments.js"></script>
         <div class="col-lg-12 col-md-12 col-sm-12 col-xs-12" style="text-align:center;"><h3>Other implementations</h3>
         </div>
         {% if page.otherI %}

Source/assets/html/header.twig

@@ -1,4 +1,4 @@
 <header>
-    <h2><a href="index.php" style="color: #333">CodeShare<sup>Beta</sup></a></h2>
+    <h2><a href="index.php" style="color: #333">CodeShare</a></h2>
     <h4>Simple solutions for common problems</h4>
 </header>

Source/src/app.php

@@ -150,7 +150,7 @@ function doc(){
 
 function add(){
     global $twig,$path,$user,$supported;
-    if(isset($user['IDU'])){
+    if(!isset($user['IDU'])){
         header("Location: ?page=login");
     }
     if(isset($_POST['name'])){