[fluid-dev] Multiple jack clients == really bad

[josh]

While doing some testing of the MIDI parser, using the Jack MIDI  
driver, I discovered that FluidSynth would semi-randomly lose  
connection with Jack on startup.

It seems Jack (at least 116.1) doesn't like to have multiple client  
connections.  Currently the Jack audio driver and Jack MIDI driver  
create separate client connections.  In addition, I discovered that  
PortAudio will also create a Jack client connection when you  
initialize the library.  In order to have the list of PortAudio  
devices in the audio.portaudio.device, PortAudio is initialized even  
if it doesn't get used.  We may be able to get around this by  
de-initializing the driver at the end of getting the device list.

At any rate, some work cut out for me, to merge the JACK audio and  
MIDI drivers.  I already kind of hacked it somewhat, but its a bit too  
messy for my taste.

Yet another status report, as we count down to the release of 1.1.0.   
Any reports on testing would be greatly appreciated.  I'm trying to  
test as much as I can, but its hard to cover every usage scenario.

Cheers!
Josh