Send error to client if service does not exist.
Send error to client if service does not exist.

Change-Id: I81d794029687388e2f1da0304d6cd1b63f4477ef
Reviewed-on: http://gerrit.aldebaran.lan:8080/3755
Reviewed-by: llec <42f1a1c02cacc0f5b0188f0127ea77bedfdcf21a@aldebaran-robotics.com>
Tested-by: llec <42f1a1c02cacc0f5b0188f0127ea77bedfdcf21a@aldebaran-robotics.com>

aldebaran/libqi-java,bsautron/libqi,vbarbaresi/libqi,aldebaran/libqi-java,aldebaran/libqi,aldebaran/libqi,aldebaran/libqi,aldebaran/libqi-java