Generate a basic page on the server for text clients and Google

Basically I copy+pasted chunks of HTML from the frontend code and made it into some really really nasty ERB code.  It's hacky, disgusting, and will absolutely positively need replacing within a few months.  But this should get us back onto Google in the meantime.

Also this is heavily microdata'd, so Google can parse it and make sexy love to your eyes on SERPs.  I've contacted the Schema.org mailing list to figure out how best to mark up the fairly extensive data for voice actors, so I may have improvements there shortly.

On a related note, we really really need to do a big cleanup sprint after Manga Lists launch.  It's hard to write new code when basically nothing is built to be reusable.