No method exception - figured it out

I had to dig through the source and do a lot of debug printing, but I
figured out that because I was using NavigableString objects generated
RubyfulSoup parsing lib, instead of String, the drb server was not
unmarshalling the object.

I fixed it by calling to_s on all my strings.

ActiveRecord and the local ferret server handled this fine, but the
one chokes.

The error was masked twice by the exception trapping code in

How about using responds_to? instead of catching NoMethodError so that
underlying errors will be exposed.