Add user filter/condition for notifications

app/Template/notification/task_overdue.php

@@ -0,0 +1,18 @@
+<h2><?= t('Overdue tasks for the project "%s"', $project_name) ?></h2>
+
+<ul>
+    <?php foreach ($tasks as $task): ?>
+        <li>
+            (<strong>#<?= $task['id'] ?></strong>)
+            <?php if ($application_url): ?>
+                <a href="<?= $application_url.$this->url->href('task', 'show', array('task_id' => $task['id'], 'project_id' => $task['project_id'])) ?>"><?= $this->e($task['title']) ?></a>
+            <?php else: ?>
+                <?= $this->e($task['title']) ?>
+            <?php endif ?>
+            (<?= dt('%B %e, %Y', $task['date_due']) ?>)
+            <?php if ($task['assignee_username']): ?>
+                (<strong><?= t('Assigned to %s', $task['assignee_name'] ?: $task['assignee_username']) ?></strong>)
+            <?php endif ?>
+        </li>
+    <?php endforeach ?>
+</ul>