stop running quality in packer builds

Adds mongo read preferences for use when a replica set is provided

veda encode worker

with sane defaults for Studio and LMS.

Also ensures that EDXAPP_MONGO_REPLICA_SET is included in all
docstore configuration blocks.

Deal with the update failing because apt is already running.

run the edx_themes role first.

EDUCATOR-1664

Add EDX_PLATFORM_REVISION env var for Studio/LMS

Update sandbox ami, fix edx and mongo repo errors

This is useful for debug output in edx-platform. We used to have the app
generate this value by doing a call to dealer.git on startup, but that
was slow.

Update Mongo 3.2 apt gpg key

veda pipeline worker

Coryleeio/install splunk app via ansible

Upgrade flower to 0.9.2 and pin celery version

Update baked_config.sh to support sandbox

The Credentials Service now relies solely on the central JWT issuer (e.g. LMS) for issuing tokens, rather than a service-specific issuer. The JWT authentication override has been removed.

LEARNER-3441

Bump jenkins instance cap for new subnet

OPS-2532 Install jenkins app on splunk via ansible. Provide mechanism for installing more splunk apps in the future.

Convert sandbox from rabbit to redis OPS-2489

Add Analytics API configuration parameters to edxapp configuration file

veda ffmpeg role