Version: 1.2 - 2015/05/31 
- Fixed bug: CSS3 effect on safari browser
Version: 1.3 - 2015/06/10
- Upgraded: YouTube's Data API v3
Version: 1.4 - 2015/10/09
- Added new feature: Parallax Open Simple Effect
- Added new feature: Add image, video from external source (direct url)
- Fixed video url invalid.
Version 1.5 - 2016/04/18
- Fixed apbackground including issue
- Fixed multiple instance for iw course shortcode

Version 3.8.1
- Public plugin on WordPress.org
- Fixed PHP error notice on PHP 8
- Fixed error can not select content background color
- Fixed can not open image large view in parallax gallery
- Updated support WooCommerce 6.7
- Updated support WordPress 6.0
- Update vimeo API to get video

Version 3.8.2
- Add key actions: ESC - Close modal/image view; ArrowRight - Go to next; ArrowLeft - Go to prev
- Fix image display on gallery for default layout
- Fix video background setting
- Update language