mattdrayer/api-course-observer-role: Added new 'observer' role, plus batch PUT operation

common/djangoapps/student/roles.py

@@ -256,6 +256,15 @@ class CourseObserverRole(CourseRole):
 
 
 @register_access_role
+
+class CourseObserverRole(CourseRole):
+    """A course Observer"""
+    ROLE = 'observer'
+
+    def __init__(self, *args, **kwargs):
+        super(CourseObserverRole, self).__init__(self.ROLE, *args, **kwargs)
+
+
 class CourseBetaTesterRole(CourseRole):
     """A course Beta Tester"""
     ROLE = 'beta_testers'