"type" is not optional

Author: mr-c

CommandLineTool.yml

@@ -101,6 +101,8 @@ $graph:
           and [loadListing](#LoadContents) to control whether and how
           `Directory` listings should be loaded for use in expressions.
         * [Better explain](#map) the `map<…>` notation that has existing since v1.0.
+        * Fixed schema error where the `type` field inside the `inputs` and
+          `outputs` field was incorrectly listed as optional.
 
       See also the [CWL Workflow Description, v1.1.0-dev1 changelog](Workflow.html#Changelog).
 
@@ -437,7 +439,6 @@ $graph:
   fields:
     - name: type
       type:
-        - "null"
         - CWLType
         - stdin
         - CommandInputRecordSchema
@@ -472,7 +473,6 @@ $graph:
   fields:
     - name: type
       type:
-        - "null"
         - CWLType
         - stdout
         - stderr

Workflow.yml

@@ -88,6 +88,9 @@ $graph:
           and [loadListing](#LoadContents) to control whether and how
           `Directory` listings should be loaded for use in expressions.
         * [Better explain](#map) the `map<…>` notation that has existing since v1.0.
+        * Fixed schema error where the `type` field inside the `inputs` and
+          `outputs` fields for both `Workflow` and `ExpressionTool` was
+           incorrectly listed as optional.
 
       See also the [CWL Command Line Tool Description, v1.1.0-dev1 changelog](CommandLineTool.html#Changelog).
 
@@ -110,7 +113,6 @@ $graph:
   fields:
     - name: type
       type:
-        - "null"
         - CWLType
         - OutputRecordSchema
         - OutputEnumSchema
@@ -139,7 +141,6 @@ $graph:
   fields:
     - name: type
       type:
-        - "null"
         - CWLType
         - InputRecordSchema
         - InputEnumSchema
@@ -235,7 +236,6 @@ $graph:
         If not specified, the default method is "merge_nested".
     - name: type
       type:
-        - "null"
         - CWLType
         - OutputRecordSchema
         - OutputEnumSchema