Prepend the Prependable module to ActiveSupport::Concern
This is more robust on Ruby 2.1 where we would get the following error:
NoMethodError: super: no superclass method `included' for EE::Namespace:Module
Closes #1574 (closed)
This is more robust on Ruby 2.1 where we would get the following error:
NoMethodError: super: no superclass method `included' for EE::Namespace:Module
Closes #1574 (closed)