Even if client is subscribed to jack server start/stop signals,
there is a timeframe between jack server stop and signal delivery.
In this frame, calls that require started server will fail.
This is part of normal operation and should not be treated as real error.
With this changeset, error is reported through dbus but no error is printed
in the log file
git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@3843 0c269be4-1314-0410-8aa9-9f06e86f4224