rspec/rspec-rails — pull request #727 by csaura (2013-04-01 16:30:15+00:00)
Title: Update how Rails.version is checked

A proposal to centralize and simplify how rails version is checked instead os use directly the long line:
`Gem::Requirement.new('< 3.1').satisfied_by?(Gem::Version.new(::Rails.version.to_s))`

proposal: `RSpec::Rails::Version.rails_version?('< 3.1')`