A small refactor of ora

* configurable virtualenv, defaults to the normal location
* moves the upstart and gunicorn configs into the configuration repo
* changes to deploy.yml, move packages into the repo
ora virtualenv bootstrap
use a separate virtualenv for ora for jenkins tests
separate virtualenv for ora
ora_venv_dir
changing default ora virtualenv
fixing pre-requirements venv dir
changing default venv for ora
adding override for ora_venv_dir
updating var_files in playbook
configurable virtualenv for env
changing venv override
ease uses the same virtualenv as ora
default ora and ease venv dir using {{ venv_dir }}
always ignore_errors on stop
commenting out other roles
adding xqueue
adding xserver
adding ora
enabling rabbitmq