WPLMS Pro update (v.5.21.7)

Update this month:

1. IOS APP audit optimization
2. Remove the APP live discussion function and change it to the message function
3. Added support for Youtube and Vimeo videos
4. Optimized video player to support HLS
5. Optimized video player for double-speed playback
6. Increase multi-language (Chinese, Taiwanese Traditional, Hong Kong and Macao Traditional, English)
7. Optimize payment functions (Paypal, Stripe, Taiwan Green World ECPay)
8. Added corporate customer review function (corporate customers can review customers by themselves)
9. Added batch review of students function
10. Optimize background user data export function