Update for Rails 4.1.1


- Route generator should look for `Rails.application...` ([related commit in Rails](https://github.com/rails/rails/commit/2ddbe87e7acc324ce7e0a4784c4d10b79cc49a40))
- BatmanController should render `file: 'layout/batman', layout: false` (can't find a relevant commit, but there's a few related [issues](https://github.com/rails/rails/issues/14336), and this is what we had to do to upgrade Planning Center Check-ins to Rails 4.1.1)
- For some reason, the the `batman_preload_views` test behaved differently. Updated.