Improve activity stream/notification for task update events and add new notification for swimlane change

app/Template/event/events.php

@@ -7,6 +7,8 @@
             <p class="activity-datetime">
                 <?php if ($this->text->contains($event['event_name'], 'subtask')): ?>
                     <i class="fa fa-tasks"></i>
+                <?php elseif ($this->text->contains($event['event_name'], 'task.move')): ?>
+                    <i class="fa fa-arrows-alt"></i>
                 <?php elseif ($this->text->contains($event['event_name'], 'task')): ?>
                     <i class="fa fa-newspaper-o"></i>
                 <?php elseif ($this->text->contains($event['event_name'], 'comment')): ?>

app/Template/event/task_move_swimlane.php

@@ -0,0 +1,19 @@
+<?= $this->user->avatar($email, $author) ?>
+
+<p class="activity-title">
+    <?php if ($task['swimlane_id'] == 0): ?>
+        <?= e('%s moved the task %s to the first swimlane',
+                $this->e($author),
+                $this->url->link(t('#%d', $task['id']), 'task', 'show', array('task_id' => $task['id'], 'project_id' => $task['project_id']))
+            ) ?>
+    <?php else: ?>
+        <?= e('%s moved the task %s to the swimlane "%s"',
+                $this->e($author),
+                $this->url->link(t('#%d', $task['id']), 'task', 'show', array('task_id' => $task['id'], 'project_id' => $task['project_id'])),
+                $this->e($task['swimlane_name'])
+            ) ?>
+    <?php endif ?>
+</p>
+<p class="activity-description">
+    <em><?= $this->e($task['title']) ?></em>
+</p>

app/Template/event/task_update.php

@@ -8,4 +8,9 @@
 </p>
 <p class="activity-description">
     <em><?= $this->e($task['title']) ?></em>
+    <?php if (isset($changes)): ?>
+        <div class="activity-changes">
+            <?= $this->render('task/changes', array('changes' => $changes, 'task' => $task)) ?>
+        </div>
+    <?php endif ?>
 </p>