undo some of the webrtc ds record changes

...playback/core/lib/recordandplayback/deskshare_archiver.rb

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

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

...k/core/lib/recordandplayback/webrtc_deskshare_archiver.rb

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

record-and-playback/core/scripts/bigbluebutton.yml

...k/core/spec/recordandplayback/deskshare_generator_spec.rb

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

video-broadcast/.classpath

video-broadcast/.project