Filling out initial rubocop support.

https://blueprints.launchpad.net/openstack-chef/+spec/lint-and-unit-testing-for-havana
Removing tailor, cleaning up metadata and Gemfile and adding TESTING.md

Change-Id: Ia84f3de61ff07b32d0cba15146a971fdf9e7d099
Delete the rootwrap.d filters

Delete the rootwrap.d filters templates and use the config provided by
openstack upstream packages.

Change-Id: I41edf128b5905bb74571eec106fe34f046af628f
Merge "Delete the rootwrap.d filters"