[Virtual-pkg-base-maintainers] Bug#766914: base: audio group should not be default for users

[Kaj Ailomaa]

Package: base
Severity: important

Reference from Ubuntu wiki on the arguments against using audio group
as default for users https://wiki.ubuntu.com/Audio/TheAudioGroup.

audio group is currently expected by the jackd packages to gain
realtime privilege for users. jackd1 and jackd2 packages install
the file /etc/security/limits.d/audio.conf for this purpose.
It is also required to gain acess for a set of firewire devices 
using the ffado driver. Privileges granted with the file
/lib/udev/rules.d/60-ffado.rules installed by the package libffado2.

I propose to remove audio group from the list of user default groups 
and add a new one for jack, specifically. 
Either named "jack", or as is praxis on Fedora systems, "jackuser".

In any case, it would be good to standardize the group for jack. The
use of such a group for jack is the much preferred option. It is what 
jack devs recommend, and it is the way most people use to get realtime
privilege.

-- System Information:
Debian Release: jessie/sid
  APT prefers testing-updates
  APT policy: (500, 'testing-updates'), (500, 'testing'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.16.0-lowlatency (SMP w/4 CPU cores; PREEMPT)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash