Add updater to draft-4.dev3
Add updater to draft-4.dev3

SciDAP/cwltool,dleehr/cwltool,chapmanb/cwltool,dleehr/cwltool,common-workflow-language/cwltool,jeremiahsavage/cwltool,dleehr/cwltool,SciDAP/cwltool,chapmanb/cwltool,jeremiahsavage/cwltool,chapmanb/cwltool,chapmanb/cwltool,common-workflow-language/cwltool,SciDAP/cwltool,jeremiahsavage/cwltool,jeremiahsavage/cwltool,SciDAP/cwltool,dleehr/cwltool,common-workflow-language/cwltool