3.1.3
- Improve notification speed

3.1.2
- Strip HTML tags in the notification

/**2021.04.30 **/
- Added support for Super PWA Plugin

/**2021.04.26 **/
- Fixed: WooCommerce {order_id} and {order_total} attributes for New Order

/**2021.04.15 **/
- Improved: Service Worker file and add new option to Auto-hide notification (true/false)
- Fixed: Single notification appears multiple time in the notification stats page

/**2021.02.08 **/
- Fixed: Bug assosiated with re-subscription

/**2020.11.22 **/
- Fixed: Bug assosiated with scheduled notifications

/**2020.10.27 **/
- Fixed: Special Character issue in the notification

/**2020.10.04 **/
- Updated: Push library to speed up the process of sending push notification

/**2020.07.10 **/
- Fixed: BuddyPress URL issue

/**2020.04.26 **/
- Added: New options for woocommerce

/**2020.04.03 **/
- Improved: Layout for new version

/**2019.10.06 **/
- Added: Option to clean database (clear notification history)
- Improved: Performance to send push notification

/**2019.05.27 **/
- Added: Support for Classic Editor plugin for wordpress 5

/**2019.04.23 **/
- Added: Notification stats page

/**2018.12.09 **/
- Improved: Performance to send bulk notifications

/**2018.12.05 **/
- Added: Pagination in subscribers page
- Improved: Admin layout for mobile screen

/**2018.10.23 **/
- Added: Feature for WooCommerce 
- Added: Welcome Notification
- Added: Support for custom post type

/**2018.09.04 **/
- Added: Feature for BuddyPress 

/**2018.08.07 **/
- Initial Release