[LAD] jack_mixer, resp. PID in JACK client names in general

[Ralf Mardorf]

Pardon, I won't write so frequently. I compiled a lot of new apps and 
started making music. Just a short request. Please coders, avoid using 
the PID in JACK client names. I like to restore sessions automatically 
by Qtractor or jack_snapshot. I like jack_mixer a lot, but can't use it, 
because of the PID in the JACK client's name and there seems to be no 
option to ban this behaviour.

Best,
Ralf