zweitag/glow — pull request #1 by hzeus (2012-05-04 13:20:43+00:00)
Title: Avoid ActiveSupport::Concern deprecation warnings in lib/glow/filter

https://github.com/rails/rails/blob/305d5d5e90dce181c5e33e98e3217eec423ee1fc/activesupport/lib/active_support/concern.rb#L116