Show the task creation form as a popover

app/Controller/Task.php

@@ -89,8 +89,9 @@ class Task extends Base
     public function create()
     {
         $project = $this->getProject();
+        $method = $this->request->isAjax() ? 'load' : 'layout';
 
-        $this->response->html($this->template->layout('task_new', array(
+        $this->response->html($this->template->$method('task_new', array(
             'errors' => array(),
             'values' => array(
                 'project_id' => $project['id'],

app/Template/board/show.php

@@ -9,7 +9,7 @@
     <?php foreach ($board as $column): ?>
     <th width="<?= $column_with ?>%">
         <div class="board-add-icon">
-            <?= Helper\a('+', 'task', 'create', array('project_id' => $column['project_id'], 'column_id' => $column['id']), false, '', t('Add a new task')) ?>
+            <?= Helper\a('+', 'task', 'create', array('project_id' => $column['project_id'], 'column_id' => $column['id']), false, 'task-creation-popover', t('Add a new task')) ?>
         </div>
         <?= Helper\escape($column['title']) ?>
         <?php if ($column['task_limit']): ?>