(cherry picked from commit a8bd50f9)

This jenkins instance will perform following tasks:

* Set up authentication using Jenkins Unix Auth Realm
* Set up administrative user
* Load credentials from a JENKINS_ANALYTICS_CREDENTIALS variable
* Checkout seed job repository
* Launch seed job to populate Jenkins with analytics Jobs

cf. https://github.com/edx/configuration/pull/2753#discussion_r52667259

Nobody tests on it, and it's probably broken.

When developing on devstack, it's useful to have a way to share source
trees between the host and the guest OS. The src directory is for this
sharing, so that working trees can be accessed inside the guest OS.

ECOM-2184

- Added explicit values for variables that must be shared between ecommerce and edxapp
- Added ecommerce virtualenv bin directory to PATH for ecommerce user
- Using local Django settings (instead of production)
- Disabled static file compilation for devstack
- Allowing ecommerce version to be specified via environment variable

ECOM-2185

Allows deployment of the ecommerce worker, a Celery-based IDA for asynchronously handling ecommerce tasks. ECOM-2306.

Counterpart to the Vagrantfile for testing individual Ansible roles.

syntax

Making version handling consistent

whitespace

removing unrelated change.

reverting quotes

This kills the ecomstack. Includes a new ecommerce task responsible for OAuth2 Client configuration.

Add ports for edX Notes and for Bok Choy test servers.

Having an editable installation of django-oscar hasn't proven necessary during development of the ecommerce service, so that step has been removed as well. The base ecommerce requirements file installs a non-editable version.