fix some combinedopenended ui and data routing

common/lib/xmodule/xmodule/css/combinedopenended/display.scss

@@ -108,6 +108,12 @@ section.combined-open-ended-status {
           float: right;
         }
     }
+
+    .icon-caret-right {
+      display: inline-block;
+      vertical-align: baseline;
+      margin-right: ($baseline/4);
+    }
 }
 
 div.combined-rubric-container {

common/lib/xmodule/xmodule/open_ended_grading_classes/peer_grading_service.py

@@ -41,7 +41,7 @@ class PeerGradingService(GradingService):
         return self.try_to_decode(self._render_rubric(response))
 
     def save_grade(self, location, grader_id, submission_id, score, feedback, submission_key, rubric_scores,
-                   submission_flagged):
+                   submission_flagged, answer_unknown):
         data = {'grader_id': grader_id,
                 'submission_id': submission_id,
                 'score': score,
@@ -50,7 +50,9 @@ class PeerGradingService(GradingService):
                 'location': location,
                 'rubric_scores': rubric_scores,
                 'rubric_scores_complete': True,
-                'submission_flagged': submission_flagged}
+                'submission_flagged': submission_flagged,
+                'answer_unknown' : answer_unknown,
+        }
         return self.try_to_decode(self.post(self.save_grade_url, data))
 
     def is_student_calibrated(self, problem_location, grader_id):

common/lib/xmodule/xmodule/peer_grading_module.py

@@ -310,10 +310,11 @@ class PeerGradingModule(PeerGradingFields, XModule):
         submission_key = data.get('submission_key')
         rubric_scores = data.getlist('rubric_scores[]')
         submission_flagged = data.get('submission_flagged')
+        answer_unknown = data.get('answer_unknown', False)
 
         try:
             response = self.peer_gs.save_grade(location, grader_id, submission_id,
-                                               score, feedback, submission_key, rubric_scores, submission_flagged)
+                                               score, feedback, submission_key, rubric_scores, submission_flagged, answer_unknown)
             return response
         except GradingServiceError:
             # This is a dev_facing_error

lms/templates/combinedopenended/combined_open_ended_status.html

@@ -8,7 +8,11 @@
                 <div class="statusitem" data-status-number="${i}">
             %endif
                     ${status['human_task']}
+
             </div>
+            %if i<len(status_list)-1:
+                <i class="icon-caret-right"></i>
+            %endif
         %endfor
     </section>
 </div>