Code refactoring (add autoloader and change files organization)

app/Templates/task_layout.php

@@ -0,0 +1,16 @@
+<section id="main">
+    <div class="page-header">
+        <h2><?= Helper\escape($task['project_name']) ?> &gt; <?= t('Task #%d', $task['id']) ?></h2>
+        <ul>
+            <li><a href="?controller=board&amp;action=show&amp;project_id=<?= $task['project_id'] ?>"><?= t('Back to the board') ?></a></li>
+        </ul>
+    </div>
+    <section class="task-show">
+
+        <?= Helper\template('task_sidebar', array('task' => $task)) ?>
+
+        <div class="task-show-main">
+            <?= $task_content_for_layout ?>
+        </div>
+    </section>
+</section>