[development] 404 search

[David K Norman]

I just wanted to make sure this wasn't implemented before I submitted an
official feature request issue.

Sometimes I remove an attachment from a node, but Google still keeps it
indexed for a while. I can see people still trying to access the file in
my logs, but they get a 404. I think it would be cool if the 404 message
was able to say "Page not found", but then use the missing URL as a
search string to display other possible similar pages in the site under
the Page not found message.

David Norman
http://deekayen.net/