* Allow sanity tests to easily ignore themselves.
Useful for simple regex based sanity tests that error on their own script due to the regex or error message generated.
* Simplify no-smart-quotes sanity test.
Pruning of unversioned directories is handled by ansible-test.
* Remove directory pruning from boilerplate tests.
Files not passing these tests should be ignored instead.
* Add missing sanity ignore entries.
The metaclass boilerplate is safe to apply en masse. The future import
boilerplate needs code to be inspected to be sure that there aren't any
py2isms that need to be fixed. Split these two checks so that we can
fix them independently
Be explicit about which files are grandfathered so we can fix them up one by one
