This reverts commit bdb77826d98544ab37741f740dd3516023924b27.
Jack1 is not obsolete and neither jack1 nor jack2 is called 'jackaudio'.
Q: What's the difference between Jack1 and Jack2?
A: http://trac.jackaudio.org/wiki/Q_differenc_jack1_jack2
Currently, we have a 'jack' package with attrname 'jack1d' and a
'jackdbus' package with attrname 'jackaudio'. Make it consistent 'jack1'
and 'jack2' in both package name and attrname.
This aligns the naming with what can be found on the JACK homepage.
Q: what's the difference between jack1 and jack2?
A: http://trac.jackaudio.org/wiki/Q_differenc_jack1_jack2
LV2 is a portable plugin standard for audio systems, similar in scope to LADSPA, VST, AU, and others. The Calf audio plugin pack uses LV2 and Ardour3 has also been updated to support LV2 Plugins
