* Do not start locust automatically, instead make the locust user
  suitable for interactive manipulation and execution of the codebase.
  This works well for the current iteration of edx-load-tests which
  expects the user to hand-modify settings files.

* For convenience, the locust user gets dropped straight into the
  edx-load-tests codebase and sources a virtualenv with most
  dependencies already installed.

* Add an extra MOTD related to loadtesting

PERF-415

There were two whens in these tasks

Ansible warned at the top, rather than complaining louder.

add the ec2 plugin + deps

Ansible Script to rollback migrations

turn off mongo auth for platform jenkins

Update Vagrantfiles for ficus.1

(cherry picked from commit bc971b0f)

Source python virtual env in analytics_api_env

https://wiki.jenkins-ci.org/display/JENKINS/Amazon+EC2+Plugin

Enable Mongo auth

Mroytman/update dockerfile

TNL-6278 Adds in xvfb and firefox to tools_jenkins for bok-choy tests

Sleep before attempting to restart forums

Update Vagrantfiles

(cherry picked from commit 8d1a52fe)

If it fails with this exit code, rake search:validate failed, meaning
the elasticsearch mappings or index isn't in sync with the code. To
avoid bouncing the app too quickly when this happens, sleep for a bit

The API changed slightly.

Use the ubuntu keyserver to retrieve the edX PPA key.

Explicitly set the permissions for the supervisor config for celery.

Upgrade to 3.0.14