Merge pull request #243 from kepstin/recording-rewrite

bigbluebutton-config/bin/bbb-conf

record-and-playback/core/lib/recordandplayback.rb

record-and-playback/core/lib/recordandplayback/edl.rb

record-and-playback/core/lib/recordandplayback/edl/audio.rb

record-and-playback/core/lib/recordandplayback/edl/video.rb

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

.../core/lib/recordandplayback/generators/audio_processor.rb

...-playback/core/lib/recordandplayback/generators/events.rb

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

...k/presentation/playback/presentation/css/bbb.playback.css

...d-playback/presentation/playback/presentation/playback.js

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

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

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