undefining `object_id' may cause serious problems
When I use your plugin, I got below notification.
C:/redmine/vendor/bundle/ruby/1.9.1/gems/blankslate-3.1.2/lib/blankslate.rb:51: warning: undefining `object_id' may cause serious problems
You're extracting __|instance_eval|object_id in BlankObject class, though it's needless? When I check document of builder, I thought that. Could you fix this problem?