appraise "rails-3.1" do
gem "rails", "~> 3.1.12"
end
appraise "rails-3.2" do
gem "rails", "~> 3.2.22.2"
end
appraise "rails-4.0" do
gem "rails", "~> 4.0.13"
end
appraise "rails-4.1" do
gem "rails", "~> 4.1.15"
end
appraise "rails-4.2" do
gem "rails", "~> 4.2.6"
end