Switch to elu by default
Switch to elu by default


Former-commit-id: e6ad1ec62cbf56e6f5074cdfb24d73666413be10
Former-commit-id: 043674694fe1646385fbe8e9db8987e9fbc50857
Former-commit-id: 00fe9c6c9082c3c7827a636b9ea58349359c100d
Former-commit-id: 310da0ce1ad4953628daf4b530e34d7d385e0dc4
theislab/dca,theislab/dca,theislab/dca