use config-schema datafiles for default commands (#694)
use config-schema datafiles for default commands (#694)


sis-tools/dcos-cli,sis-tools/dcos-cli,sis-tools/dcos-cli,kensipe/dcos-cli,dcos/dcos-cli,kensipe/dcos-cli,dcos/dcos-cli,kensipe/dcos-cli,dcos/dcos-cli,dcos/dcos-cli,mesosphere/dcos-cli,kensipe/dcos-cli,dcos/dcos-cli,mesosphere/dcos-cli,kensipe/dcos-cli,mesosphere/dcos-cli