sync with ecluster_config() args change in ba5f2e98
sync with ecluster_config() args change in ba5f2e98

brainstorm/bcbio-nextgen-vm,fw1121/bcbio-nextgen-vm,guillermo-carrasco/bcbio-nextgen-vm,alexandrucoman/bcbio-nextgen-vm,chapmanb/bcbio-nextgen-vm,alexandrucoman/bcbio-nextgen-vm,chapmanb/bcbio-nextgen-vm,fw1121/bcbio-nextgen-vm,guillermo-carrasco/bcbio-nextgen-vm,brainstorm/bcbio-nextgen-vm