Addendum

[Ross Singer]

At Jason Ronallo's request, the OpenBiblio connector now returns the
JSON as text/html unless explicitly requested as application/json or
text/json.

I'm having some problems getting it to PrettyPrint properly, but at
least now it shouldn't be prompting you to download it.

Also, it was Jason's suggestion to use Sinatra... so I basically I
have no original ideas.
-Ross.