Merge pull request railsadminteam#3354 from fuegas/support-alternative-paper-trail-versions-association

Support alternative paper_trail versions association name

Author: mshibuya

lib/rails_admin/extensions/paper_trail/auditing_adapter.rb

@@ -116,7 +116,7 @@ def listing_for_model_or_object(model, object, query, sort, sort_reverse, all, p
 
           current_page = page.presence || '1'
 
-          versions = object.nil? ? versions_for_model(model) : object.versions
+          versions = object.nil? ? versions_for_model(model) : object.public_send(model.model.versions_association_name)
           versions = versions.where('event LIKE ?', "%#{query}%") if query.present?
           versions = versions.order(sort_reverse == 'true' ? "#{sort} DESC" : sort)
           versions = all ? versions : versions.send(Kaminari.config.page_method_name, current_page).per(per_page)