aratak/wkhtmltopdf_for_rails — pull request #5 by dmitriy-kiriyenko (2012-06-19 12:36:07+00:00)
Title: Avoid deprecation message in new Rails.

Since Rails 3.2.5, an annoying deprecation message appears.

```
/var/www/redtape/staging/shared/bundle/ruby/1.8/gems/actionpack-3.2.5/lib/action_dispatch/http/mime_type.rb:102: warning: already initialized constant PDF
```

The patch removes it without breaking functionality for old Rails.

P.S. Лёша, принимай.