swanandp/acts_as_list — pull request #90 by tvdeyen (2013-09-09 14:48:15+00:00)
Title: Adds `required_ruby_version` to gemspec

As `acts_as_list` does not support Ruby 1.8 anymore, the `gemspec` should reflect this.

So if one bundles this gem in ruby 1.8, bundler will raise an error.