Not everybody builds VLC from the source tree
besides that the shell code was wrong : the return value of a pipe is the one of the LAST command in the pipe.

This was triggered by DBus module using access2_Control

Refactor video_filters in modules/stream_out/transcode.c by abstracting common code into 2 new functiosn transcode_video_filter_new() and transcode_video_filter_close().

- add PID to syslog and use lowercase vlc (conforming to syslog standards)
- add the command-line verbosity control -v[0-2] to html/text/syslog
    logging, such that one can disable f.i. LOG_DEBUG from being offered
    to html/text/syslog completely.
- add the priority to the syslog message

[] cause problems in zsh completion
Changing it to () is easier than fixing zsh completion generator

Don't use non-standard extensions
Run the script in zsh

Get channels information from decoder specific config
Add (commented) useless variables from ADTS header
Detect unsupported configurations and start (commented) support

plus a bit of code factorisation

Note that saving multi-key combinations will fail right now.

Will remove the legacy tar.gz. If you build the contribs, you need SVN and git.