Only set the lms as the default.

Added mirrored queues for clusters and VHOST support to rabbitmq

adding mongo updates to the abbey script

Remove non-existent 'splunk' group when creating user

Update edx-west plays with new nginx variables.

Set a default value for default_site.

CMS should not be default.

When 'splunk' group doesn’t exist yet, ansible fails when creating the
user. Leaving it empty will create the group anyway.

Add nginx roles to plays and add new plays.

Added new plays for splunkforwarder and datadog and added
nginx to the xqueue, xserver, and edxapp plays.

Feanil/cloudformation elastic search

USE_CUSTOM_THEME

bugfix: merge 2 when: clauses

Sets up codejail

set startsecs param in xqueue supervisor conf

* Don't specify sandbox group (will be same as sandbox user)
* Don't manually create sandbox venv directory
* Move the initial sandbox setup out of deploy.yml to main.yml
* Factor out when: EDXAPP_CODE_SANDBOX to include
* Put profile into complain mode when installing instead of
  disabling altogether
* Add validate= to sudoer template module task
* Use chdir= instead of cd in command
* Use change_when on shell module