ServiceDirectory: disable send event for serviceAdded/serviceRemoved
ServiceDirectory: disable send event for serviceAdded/serviceRemoved

(waiting for real events)

Change-Id: Iaa90b2628c88ec21c8e29dba1be8c5f6dd84be68
Reviewed-on: http://gerrit.aldebaran.lan:8080/5670
Reviewed-by: llec <42f1a1c02cacc0f5b0188f0127ea77bedfdcf21a@aldebaran-robotics.com>
Reviewed-by: cgestes <ddb78fe00abb42f91254c16a0860e38eb0781789@aldebaran-robotics.com>
Tested-by: cgestes <ddb78fe00abb42f91254c16a0860e38eb0781789@aldebaran-robotics.com>

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