MAPG-87 use HTML5 semantic elements, new styles, new footer

views/login/activate.php

@@ -1,9 +1,8 @@
 <?php require ROOT . '/views/templates/main_header.php'; ?>
 <?php require ROOT . '/views/templates/header.php'; ?>
-<div class="main">
     <h2>Account activation</h2>
     <div class="box">
         <p class="error justify">Activation failed. Please check the link you entered or retry <a href="/signup" title="Sign up">sign up</a>!</p>
     </div>
-</div>
+<?php require ROOT . '/views/templates/footer.php'; ?>
 <?php require ROOT . '/views/templates/main_footer.php'; ?>