Restore the more readable before_ and after_filters methods since the…

…y aren't called frequently

actionpack/lib/action_controller/filters.rb

@@ -569,21 +569,13 @@ def filter_chain
       # Returns all the before filters for this class and all its ancestors.
       # This method returns the actual filter that was assigned in the controller to maintain existing functionality.
       def before_filters #:nodoc:
-        filters = []
-        filter_chain.each do |filter|
-          filters << filter.method if filter.before?
-        end
-        filters
+        filter_chain.select(&:before?).map(&:method)
       end
 
       # Returns all the after filters for this class and all its ancestors.
       # This method returns the actual filter that was assigned in the controller to maintain existing functionality.
       def after_filters #:nodoc:
-        filters = []
-        filter_chain.each do |filter|
-          filters << filter.method if filter.after?
-        end
-        filters
+        filter_chain.select(&:after?).map(&:method)
       end
     end