Hi. pcm_jack.c uses jack_client_new() to open a client session with jack server.

in agreement with jack documentation: "THIS FUNCTION IS DEPRECATED AND SHOULD NOT BE USED IN NEW JACK CLIENTS" http://jackaudio.org/files/docs/html/group__ClientFunctions.html#ga97482adad...

This patch simply replace it with jack_client_open(): it's only a working draft, need to add jack status checking and so other, for eventually using jack_client_open() capabilities. Works well with jack2 too.