Add noty module.
Demo notification page.

Signed-off-by: tungpham31 <tungpham31@gmail.com>
Add addNotification() service.

Signed-off-by: tungpham31 <tungpham31@gmail.com>
Remove username from notification.

Signed-off-by: tungpham31 <tungpham31@gmail.com>
Add channel subscription feature.

Signed-off-by: tungpham31 <tungpham31@gmail.com>
Send POST request instead of GET for adding new notification.

Signed-off-by: tungpham31 <tungpham31@gmail.com>