ServiceDirectoryClient: cleanup
ServiceDirectoryClient: cleanup

Change-Id: Ic464fe4e32585f4d82f26666d7c042180a98b266

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