Also make destroy.sh delete anonymous disks (use -v with docker-compose)

* Due to behavior of manage.py runserver, move docker-compose up to after
loading the database
* Run make provision as part of travis build
* Use --initial-only flag with countries provisioning for ecomm
* Serialize provision.sh and set -x for tracing
* Restart LMS container after running install prereqs due to error resulting
in LMS crashing
* Skip discovery tasks until fix is made to index validation
* Remove 'make validation' from .travis.yml, since it doesn't work
  'make provision' tells us everything we need to know

The dependency on the discovery service by credentials and ecommerce is not necessary. Having this dependency unnecessarily brings up the discovery and elasticsearch services when we want to run a single service.

Resolves #83.

This service has been split into two to ease management in devstack.
Provisioning commands will now operate on the LMS container.

Our initial desire to make development look like production by using nginx and supervisor is conflicting with our goal of easing local development pains. Specifically, front-end development requires re-compiling/collecting static assets with every change. Using Django to serve the applications alleviates this pain and allows developers to maintain their current workflows.

by devstack.provision

The merging of these two steps causes confusion when the prereq installation fails, preventing migrations from being run, yet the provisioning process continues. Splitting them out will ensure that users are aware when provisioning fails.

See #72

Static assets are installed/compiled when the images are built. Sharing
these files from the host usually results in assets needing to be
recompiled unnecessarily. Excluding them eliminates confusion around
this process and ensures only the source code is shared.

Provisioning the service will now refresh the metdata from the dependent services and update the search index.

Docker Sync will alleviate some of the filesystem issues on OS X.

This reverts commit 19096d41.

Docker Sync will alleviate some of the filesystem issues on OS X.

Fixes #52

Fixes #31

The ecommerce_worker user is now a staff user with @example.com email address. This brings it inline with the other service users.

Fixes #32

Bash won't always be at /bin/bash.

This brings the size of the edx-platform checkout down from 750 MB to 40 MB.

Eliminates the need for a virtualenv.

Fixes #36

Fixes #34

ECOM-6634

Fixes #35

ECOM-6634

Fixes #35