Add ical export for users

app/Template/user/share.php

@@ -0,0 +1,17 @@
+<div class="page-header">
+    <h2><?= t('Public access') ?></h2>
+</div>
+
+<?php if (! empty($user['token'])): ?>
+
+    <div class="listing">
+        <ul class="no-bullet">
+            <li><strong><i class="fa fa-calendar"></i> <?= $this->a(t('iCalendar (iCal format, *.ics)'), 'ical', 'user', array('token' => $user['token']), false, '', '', true) ?></strong></li>
+        </ul>
+    </div>
+
+    <?= $this->a(t('Disable public access'), 'user', 'share', array('user_id' => $user['id'], 'switch' => 'disable'), true, 'btn btn-red') ?>
+
+<?php else: ?>
+    <?= $this->a(t('Enable public access'), 'user', 'share', array('user_id' => $user['id'], 'switch' => 'enable'), true, 'btn btn-blue') ?>
+<?php endif ?>