Complete refactor and clean up

Start from scratch again and create a new OSL specific openstack cookbook that ties everything together.
Since the <code>Berksfile</code> is a Ruby DSL, you can do something like the following:

```ruby
%w(openstack-block-storage openstack-common openstack-compute
openstack-object-storage openstack-ops-database openstack-ops-messaging
openstack-orchestration openstack-telemetry).each do |cb|
  cookbook cb, 
    github: "stackforge/cookbook-#{cb}",
    branch: "stable/havana"
end

%w(openstack-dashboard openstack-identity openstack-image
openstack-network).each do |cb|
  cookbook cb, 
    github: "osuosl-cookbooks/cookbook-#{cb}",
    branch: "stable/havana"
end
```