update.py: Cleanup, only support v1.0 and higher dev versions
update.py: Cleanup, only support v1.0 and higher dev versions

common-workflow-language/cwltool,dleehr/cwltool,common-workflow-language/cwltool,dleehr/cwltool,dleehr/cwltool,common-workflow-language/cwltool,dleehr/cwltool