v2.22.rc1

• FEC-1843 - IMA native SDK support
• FEC-2247 - replacing embedPlayerHTML with setup
• FEC-2247 - fix for endless buffering issue on iOS - Player SDK
• SUP-2939 - Support CORS headers for AJAX requests
• Prevent force ending clip while midroll is playing
• Autohide controls during ad playback
• Clear mouseMoveFlag when stepping out of player
• Handle adsOnReplay logic in base player
• Don't show black screen when pausing live media with SL
• Document LeadWithHLSOnFlash