Merge pull request #5811 from edx/carol/docs/DOC-977

Add warning about sensitive info in course export

docs/en_us/course_authors/source/building_course/export_import_course.rst

@@ -33,6 +33,12 @@ the following course data:
 * Course assets
 * Course settings
  
+.. warning::
+
+	When you export a course, be aware that information such as MATLAB API keys,
+	LTI passports, annotation secret token strings, and annotation storage URLs
+	are included in the exported data. If you share your exported files, you may
+	also be sharing sensitive or license-specific information.
 
 The following data is not exported with your course:
  

docs/en_us/course_authors/source/change_log.rst

@@ -13,8 +13,12 @@ October, 2014
 
    * - Date
      - Change
+   * - 10/31/14
+     - Added warning in :ref:`Export a Course` about sensitive or license-
+       specific information that is included when you export a course.
    * - 10/30/14
-     - Added :ref:`email template<Verified Registration Reminder>` for reminding students of last day to register for verified certificates.
+     - Added :ref:`email template<Verified Registration Reminder>` for 
+       reminding students of last day to register for verified certificates.
    * - 10/29/14
      - Added information about course start time visibility to :ref:`The Course Start Date`.
    * - 10/28/14