[cm_api] Add HostsDecommission and HostsStartRoles global commands
[cm_api] Add HostsDecommission and HostsStartRoles global commands

justinhayes/cm_api,cdapio/cm_api,cdapio/cm_api,cloudera/cm_api,justinhayes/cm_api,justinhayes/cm_api,cloudera/cm_api,cdapio/cm_api,cdapio/cm_api,cloudera/cm_api