Moved logic to check if plugin installation check
is necessary into vagrantplugins.rb.

Both the automated version and non-automated version were
giving their respective plugin installation messages even
when just typing `vagrant`.

ECOM-7207

boxcutter/ubuntu1604 needs recent Vagrant, so pin at least 1.8.7

Xenial doesn't have Python 2 that ansible needs, so use ansible-bootstrap.sh to get it, though that might be way more than we need.

(cherry picked from commit a8bd50f9)

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

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.

Activated using an environment variable