Pass XQUEUE_CFG to several commands

We can also define DJANGO_SETTINGS and remove the --settings line to get
closer to edx_django_service, but not here.

Creating users and the supervisor jobs also need the environment
variable.

DEVOPS-7396

Switch over to the newer config style for pre_supervisor

Move XQueue to use edx_service

These will also be skipped in the yaml file unless set which better
enables app defaults in XQueue

Make sure your config file is an environment variables.
Remove several hardcoded settings files from the devstack commands.

This means that your default in app/settings/base.py will retain the
default if there's no default set here.  Otherwise it would be set to
None instead.

OPS-2714

The main driving force is going from xqueue.(auth|env).json to
/edx/etc/xqueue.yml like other IDAs

There's a few additional cleanups such as normalization of the repo
configuration

Fix credentials fallback language code

Add PASSWORD_POLICY_COMPLIANCE_ROLLOUT_CONFIG

build_jenkins role should use new newrelic role

fix splunk plugin variable names

install ws-cleanup and throttle-concurrent plugins for retirement jobs

Bump boto3 from 1.7.6 to 1.7.14

Bumps [boto3](https://github.com/boto/boto3) from 1.7.6 to 1.7.14.
- [Release notes](https://github.com/boto/boto3/releases)
- [Changelog](https://github.com/boto/boto3/blob/develop/CHANGELOG.rst)
- [Commits](https://github.com/boto/boto3/compare/1.7.6...1.7.14)

Signed-off-by: dependabot[bot] <support@dependabot.com>

bump the number of executors on the jenkins build docker image

* Handle http->https redirect internal ip disclosure. Also refactored and cleaned up nginx config.

* WIP

* WIP

* WIP

* WIP

* Changed 404 to 403 as it seems more appropriate, and will be easier to find if it causes something to break

* Fixes

This image isn't configured to spawn extra workers, so just bump the
number of executors on the master instance so that certain jobs (which
trigger downstream jobs) will work.

Add jenkins-worker label to the build jenkins docker image

* Revert "dont log social data leak exploit attempts"

This reverts commit 3484cb32.

* Turn off logging if next=favicon.ico

add missing packages/file to analytics pipeline dockers

dont log social data leak exploit attempts

Note the problem that occurs moving away from a user/key

upgrade shiningpanda plugin on build jenkins

OPS-2114

Bump awscli from 1.15.4 to 1.15.10

Bump ansicolor for pipeline support