A few Jack error message corrections not previously incorportated from the master branch.
A few Jack error message corrections not previously incorportated from the master branch.

OpenMusicKontrollers/chimaerad,OpenMusicKontrollers/chimaerad,OpenMusicKontrollers/chimaerad,OpenMusicKontrollers/chimaerad,OpenMusicKontrollers/chimaerad,OpenMusicKontrollers/chimaerad