provision/docker/handlers: fix docker autoscale list return.
provision/docker/handlers: fix docker autoscale list return.

tsuru/tsuru,guilhermebr/tsuru,ggarnier/tsuru,ggarnier/tsuru,ArxdSilva/tsuru,ArxdSilva/tsuru,gwmoura/tsuru,cezarsa/tsuru,ArxdSilva/tsuru,cezarsa/tsuru,guilhermebr/tsuru,ggarnier/tsuru,guilhermebr/tsuru,gwmoura/tsuru,cezarsa/tsuru,ggarnier/tsuru,ArxdSilva/tsuru,tsuru/tsuru,cezarsa/tsuru,tsuru/tsuru,gwmoura/tsuru,guilhermebr/tsuru,tsuru/tsuru