before_filter to before_action for Rails 5

[Nikolay-Lipovtsev]

Please correct before_filter and after_filter on before_action and after_action for Rails 5

userstamp/lib/userstamp.rb

module Ddb
  module Controller
    ...
    module Userstamp
      def self.included(base) # :nodoc:
        base.send           :include, InstanceMethods
        base.before_filter  :set_stamper
        base.after_filter   :reset_stamper
      end
    end
   ...
  end
end