Remove tailing _oai from OAI set ids

Author: CGillen

app/models/oai_set.rb

@@ -38,6 +38,7 @@ def sets_from_facets(facets)
         sets.concat(terms.each_slice(2).map { |t| new(t.first) })
       end
       sets = sets.reject { |set| set.name.nil? }
+      sets.each do |set| set.spec = set.spec.sub('_oai', '') end
       sets.empty? ? nil : sets
     end
   end