rename Open Ended Panel tab and make it available to staff

lms/djangoapps/courseware/tabs.py

@@ -176,7 +176,7 @@ def _combined_open_ended_grading(tab, user, course, active_page):
     if user.is_authenticated():
         link = reverse('open_ended_notifications', args=[course.id])
         # tab_name = "Open Ended Panel"
-        tab_name = "Hide Tab"
+        tab_name = "Grading Panel"
 
         notifications  = open_ended_notifications.combined_notifications(course, user)
         pending_grading = notifications['pending_grading']

lms/templates/courseware/course_navigation.html

@@ -17,7 +17,7 @@ def url_class(is_active):
   <div class="inner-wrapper">
     <ol class="course-tabs">
       % for tab in get_course_tabs(user, course, active_page):
-        % if tab.name != "Hide Tab":
+        % if tab.name != "Grading Panel" or staff_access:
           <li>
              <a href="${tab.link | h}" class="${url_class(tab.is_active)}">
                  ${tab.name | h}