Send one video stream(webcam OR deskshare) to Matterhorn server

.../lib/recordandplayback/generators/matterhorn_processor.rb

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

record-and-playback/matterhorn/scripts/process/matterhorn.rb

record-and-playback/matterhorn/scripts/publish-matterhorn.rb