jonleighton/spring — pull request #54 by amatsuda (2013-02-15 09:22:45+00:00)
Title: Don't depend on active support

Running spring command failed on my edge Rails app with this error:
> You have already activated activesupport 3.2.12, but your Gemfile requires activesupport 4.0.0.beta.

So I reinvented the AS `class_attribute`. Fixes #52.