Rails 4.2.7.1 has 'builder', '~> 3.1'.
https://github.com/rails/rails/blob/v4.2.7.1/actionview/actionview.gemspec#L24
git-svn-id: http://svn.redmine.org/redmine/trunk@16264
e93f8b46-1217-0410-a6f0-
8f06a7374b81
gem "addressable", "2.4.0" if RUBY_VERSION < "2.0"
gem "jquery-rails", "~> 3.1.4"
gem "coderay", "~> 1.1.1"
-gem "builder", ">= 3.0.4"
gem "request_store", "1.0.5"
gem "mime-types", (RUBY_VERSION >= "2.0" ? "~> 3.0" : "~> 2.99")
gem "protected_attributes"