Merge branch 'playback-async-requests' of https://github.com/fcecagno/bigbluebutton into v2.2-dev

...d-playback/core/lib/recordandplayback/generators/video.rb

record-and-playback/core/scripts/cleanup.rb

record-and-playback/deploy.sh

...sentation/2.0/acornmediaplayer/jquery.acornmediaplayer.js

...nmediaplayer/themes/bigbluebutton/acorn.bigbluebutton.css

...presentation/playback/presentation/2.0/css/foundation.css

...k/presentation/playback/presentation/2.0/lib/bbblogger.js

...ion/playback/presentation/2.0/lib/popcorn-complete.min.js

...ck/presentation/playback/presentation/2.0/lib/spin.min.js

...ack/presentation/playback/presentation/2.0/lib/writing.js

...yback/presentation/playback/presentation/2.0/playback.css

...back/presentation/playback/presentation/2.0/playback.html

...ayback/presentation/playback/presentation/2.0/playback.js

record-and-playback/presentation/scripts/presentation.yml

...and-playback/presentation/scripts/publish/presentation.rb

...ntation_export/acornmediaplayer/acornmediaplayer.base.css

...tation_export/acornmediaplayer/jquery.acornmediaplayer.js

...t/acornmediaplayer/themes/access/access-captions-dark.png

...export/acornmediaplayer/themes/access/access-captions.png

...mediaplayer/themes/access/access-exit-fullscreen-dark.png