Fix a bug in the git module: branches might not check out properly

OLIVE-19 Enable automatic provisioning of jenkins instance dedicated to running analytics tasks. 

If a git version is specified as a branch, and the commit referred to is
already on the local working tree, but the branch is not, then the
checkout will fail.

This is because the Ansible 1.9.3 module would check to see if the
commit was already present, and if so, did not fetch. This meant the
branch wasn't defined in the local working tree.

This can happen if you make a branch but there aren't any changes on the
branch.

Add install of curl to oraclejdk role & improve documentation.

programs: defaults and overrides for media storage

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

ECOM-3196

Get rabbit ready before we start workers

Discovery was missed during the initial ansible work

This let a machine boot without migrations running.

use django's storage backend ManifestStaticFilesStorage for static fi…

ECOM-3905

Upgrade go server and agent java version.

OPS-1167 Add tools-gp scripts for new CSMH DB

update credentials cors whitelist values

ECOM-3572

Update the release Vagrantfiles with dogwood.1 info

This registers over the microsites theming

Analitics pipeline acceptance test typo fix

removed supervisor role from go-server

This clobbers edxapp_theme_checkout set by the previous task, even when
the task is skipped because EDXAPP_COMPREHENSIVE_THEME_SOURCE_REPO is
unset.

edxapp_theme_checkout is used to tag the instance when the edxapp play
is run.

That tag is later used by our build infrastructure to ensure that
theme is consistent between builds.

If we want to also tag the comprehensive theme value, that's fine, but
it should not clobber the value needed by the other type of themes, and
should declare a different tag.

copy rather than template this file

It contains things that look like jinja, but are not.
DEVOPS-3836

Fixes https://github.com/edx/configuration/pull/2821

credentials: really fix CORS headers for /static

Updated go-agent docker file to pull tubular from the master branch

credentials: add CORS header for static in nginx