Organized Kaltura packaging
One script to build all
get rid of MACOSX dir and other stupid files MAC puts in the archive when front dev package it.
Validate maven installed
bash won't return negative value
Should be configured after upgrade as well
Split ffmpeg and ffmpeg-aux to different scripts
Merge branch 'Jupiter-10.0.0-media-server' of https://github.com/kaltura/platform-install-packages into Jupiter-10.0.0-media-server