thoughtbot/paperclip — pull request #1629 by michaelbaudino (2014-08-19 12:27:45+00:00)
Title: Honor fog_credentials[:scheme] option

So that `attachment.url` can provide an HTTP url if properly configured:
```
has_attached_file :image,
storage: :fog,
:fog_credentials => {
:scheme => 'http',
:access_key_id => ENV['AWS_ACCESS_KEY_ID'],
:secret_access_key => ENV['AWS_SECRET_ACCESS_KEY']
}
```

Default is still HTTPS, indeed.