Readd method name check to the metrics worker
Readd method name check to the metrics worker

In order to assure the score details attribute is only fetched if it is
available, I have readded the respond_to? method.

Signed-off-by: Konrad Reiche <4ff0213f56e2082fcd8c882d04c546881c579ce4@gmail.com>

platzhirsch/metadata-census