AutoService::asAnyObject(): Throw if unavailable
AutoService::asAnyObject(): Throw if unavailable

Change-Id: Ib11a8c399a928053bee18b8e2668aa963902f662
Reviewed-on: http://gerrit.aldebaran.lan/28527
Reviewed-by: qmignot <2eacb3173d8ffc89f147bcda33a92b005627bdfd@aldebaran-robotics.com>
Reviewed-by: mnottale <e3ccf1b6558404e921a21fa09cebb1153b50ec36@aldebaran-robotics.com>
Tested-by: qmignot <2eacb3173d8ffc89f147bcda33a92b005627bdfd@aldebaran-robotics.com>

aldebaran/libqi,aldebaran/libqi,bsautron/libqi,aldebaran/libqi,vbarbaresi/libqi