Merge pull request #4169 from edx/aed/add-notifier-back-to-ci

Add notifier back to CI.

CHANGELOG.md

 - Role: notifier
-  - Updated notifier Syncdb to do `migrate --fake-initial` instead of `syncdb`.
+  - Added notifier back to continuous integration.
 
 - Role: ecommerce
   - This role is now dependent on the edx_django_service role. Settings are all the same, but nearly all of the tasks are performed by the edx_django_service role.

playbooks/edx-east/edx_continuous_integration.yml

@@ -29,9 +29,7 @@
     - oraclejdk
     - elasticsearch
     - forum
-# Removing until Notifier is fully fixed.
-# Can be uncommented once EDUCATOR-1594 has been resolved.
-#    - { role: notifier, NOTIFIER_DIGEST_TASK_INTERVAL: "5" }
+    - { role: notifier, NOTIFIER_DIGEST_TASK_INTERVAL: "5" }
     - { role: "xqueue", update_users: True }
     - role: xserver
       when: XSERVER_GIT_IDENTITY|length > 0