Merge pull request #3663 from edx/markhoeber/documentation/doc-309

Note about course staff and discussion admin roles

docs/en_us/course_authors/source/change_log.rst

@@ -12,6 +12,9 @@ May, 2014
 
    * - Date
      - Change
+   * - 05/09/14
+     - Updated :ref:`Assigning_discussion_roles` with a note about course staff requiring
+       explicit granting of discussion administration roles.
    * - 05/08/14
      - Added warnings to :ref:`Add a File` about file size.
    * - 05/07/14

docs/en_us/course_authors/source/running_course/discussions.rst

@@ -86,7 +86,11 @@ You can designate a team of people to help you run course discussions. Different
 
 * Discussion admins have the same options for working with discussions as moderators. Admins can also assign these discussion management roles to more people while your course is running, or remove a role from a user whenever necessary. Responses and comments made by admins are marked as "Staff".
 
-.. note:: Discussion responses and comments made by course staff and instructors are also marked as "Staff".
+.. note:: 
+  Course staff and instructors that you set up in Studio are not automatically
+  granted discussion administration roles. You must explicitly grant discussion
+  administration roles to course staff and instructors if they intend to
+  administer course discussions.
 
 Before you can assign roles to your discussion administrators, you need their email addresses or usernames.