Pipes migrated to use only one instance of ffmpeg and new flux scripts for live streaming

Pipes has been refactored to use only one ffmpeg instance to both record and produce rtp packets, also Flux sources now contain a scripts directory with some bash scripts to use dvgrab and ffmpeg to stream and record live content.

These scripts are a lot easier to use and faster then the old felix ones, also Pipes is now easier to use as you don't have to handle anymore the producers section.

Just click record and then start flux and you will be streaming and recording your live conference.