Squashed 'cwltool/schemas/' changes from d674994..d4fd68c

d4fd68c cwlVersion is @vocab

git-subtree-dir: cwltool/schemas
git-subtree-split: d4fd68c

Author: Peter Amstutz

draft-4/Process.yml

@@ -549,7 +549,7 @@ $graph:
       doc: "CWL document version"
       jsonldPredicate:
         "_id": "cwl:cwlVersion"
-        "_type": "@id"
+        "_type": "@vocab"
 
 - name: InlineJavascriptRequirement
   type: record