Move uri aka videPath into videoConfig
Make make bagPath mandatory
Set videoConfig param peroperly
Import errno, Add Accept-Ranges header and set content-type to video/mp4

Still problems in ff
Make sure avconv and libx264 are installed
Use libx264 to encode mp4 videos
Analysis requires video envoder avconv
Change file format from m4v to mp4
Set default example videoconfig
Pass filepath to screenRecorder

That is required for the screenRecorder to determine the bagFilename
and save the video accordingly
Move video encoder in seperate file, check in workerPool if encoder is installed so it can abort early and fix bug in find statement: find returns -1 on failure, not false
Update todo list
Merge branch 'breaking_point' into groovy_dev