Datamanager: new _is_related_to() method, and make only_related_to private()
Datamanager: new _is_related_to() method, and make only_related_to private()

shinken-monitoring/mod-webui,rednach/mod-webui,shinken-monitoring/mod-webui,rednach/mod-webui,mohierf/mod-webui,vizvayu/mod-webui,mohierf/mod-webui,vizvayu/mod-webui,mohierf/mod-webui,shinken-monitoring/mod-webui,rednach/mod-webui