docs(openstack): fix instructions

The openstack instructions were a mix of new/old commands and
wouldn't work on a lot of openstack installs.

These documentation and changes to the provisioning script should
allow for more variation in openstack installs.

This has been tested as working against both a Havana and Juno release
of Openstack.
ref(router): change structure to allow the update of go dependencies
ref(test): by default run with logs in debug
docs(openstack): move OpenStack docs to docs site
Merge pull request #2783 from carmstrong/pr-2604

OpenStack: fix instructions and move to docs site
fix(router): missing check file in git ignored by .gitignore
chore(controller): update django-cors-headers to 1.0.0

See https://github.com/ottoyiu/django-cors-headers/releases/tag/1.0.0
fix(setup-node.sh): create database role for controller unit tests

This change also updates the VirtualBox and vagrant packages to
match those we are currently using in testing.
Merge pull request #2785 from mboersma/update-cors-headers

chore(controller): update django-cors-headers to 1.0.0
docs(disable-registration): adds documentation on how to disable user registration
docs(docs/managing_deis/platform_logging): change example to prefer tcp/tls

Prefer tcp+tls over udp for log forwarding b/c of long lines.
fix(router): fix deploy Makefile target
Merge pull request #2787 from mboersma/update-test-setup

fix(setup-node.sh): create database role for controller unit tests
Merge pull request #2792 from noblesamurai/doco_update_udp_to_tcp

docs(docs/managing_deis/platform_logging): change example to prefer tcp
Merge pull request #2791 from carmstrong/fix-router_deploy

fix(router): fix deploy Makefile target
fix(.gitignore): hide local vagrant config.rb from version control
docs(customizing_deis): remove slugbuilder/slugrunner settings

These were removed in a builder refactor and are no longer respected.
Merge pull request #2795 from mboersma/ignore-config-rb

fix(.gitignore): hide local vagrant config.rb from version control
Merge pull request #2778 from aledbf/fix_router_godeps

ref(router): change structure to allow the update of go dependencies
Merge pull request #2798 from carmstrong/builder_slugbuilder_docs

docs(customizing_deis): remove slugbuilder/slugrunner settings