[ci skip]
I accidentally committed the rc1 gem as I was preparing the rc2 gem.
Adding the gem files to the .gitignore should prevent this from
happening again.
This is similar to the work Christian Bruckmayer is doing over on
factory_bot. I read that Hound doesn't support the
`inherited_from` key, so I put all of the todos
from the auto-generated `.rubocop_todo.yml` straight into the
`.rubocop.yml`.
fixup! Add RuboCop configuration
