Merge pull request #8080 from edx/track/ga-label-shim

Add course_id as label for Google Analytics events

cms/envs/common.py

@@ -791,6 +791,9 @@ EVENT_TRACKING_BACKENDS = {
                     'OPTIONS': {
                         'whitelist': []
                     }
+                },
+                {
+                    'ENGINE': 'track.shim.GoogleAnalyticsProcessor'
                 }
             ]
         }