These labels weren't associated with any fields, which is invalid HTML.
We're using a legend inside a fieldset instead, which is the natural way
to group form fields together.
We were using long, unique names because these methods used to be helper
methods. Helper methods should have unique names because otherwise one
method would overwrite the other.
Now that we're using components, we can omit the `image_` and
`document_` prefixes.
