manuals.rubyonrails.com has been down for several days

Hi everyone,

It appears manuals.rubyonrails.com has been showing a 503 Error with
the following message

--- Start Here ---
Service Temporarily Unavailable

The server is temporarily unable to service your request due to
maintenance downtime or capacity problems. Please try again later.

--- End Here ---

Does anyone know what is going on? I'm tired of typing URLs into
Google to get to the cache..