Update specs to be rubocop compliant

It appears orchestration was missing in the rubocop blueprints. Bringing it
up to par with the other cookbooks.

- Update rubocop config to include spec/**
- Update specs to comply with rubocop
- Delete unused default spec file

Change-Id: Ie96c16fc82a4ca2c04e20fc7db2b036937f0ba04
Upgrade rubocop

Now that almost all of the rubocop blueprints have been completed, make
one final pass through all of the cookbooks ensuring they're all in
sync with each other.

- Upgrade rubocop to 0.18.1

Change-Id: If75199989252509c6dad306d15d638adff7318ec
Implements: blueprint lint-and-unit-testing-for-havana