twilson63/sinatra-formhelpers — pull request #1 by gradus (2011-11-28 16:20:10+00:00)
Title: Fix activesupport require statement for rails 3.x

Rails 3.x changed the gem name for activesupport to active_support,
and no longer monkey patches built-in classes by default, so you
need require 'active_support/all' to get all the monkey patches now:
http://edgeguides.rubyonrails.org/active_support_core_extensions.html