api: move signal handler to before provisioner initialization
api: move signal handler to before provisioner initialization

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