github/rails — pull request #45 by josh (2014-02-12 05:26:08+00:00)
Title: Backport Rack session skip

Backports the ability to skip session writing by setting `env['rack.session.options'][:skip] = true`. This should help us be more forward compat with Rails 3.0+

/cc @charliesome @tmm1

https://github.com/rack/rack/blob/master/lib/rack/session/abstract/id.rb#L175
https://github.com/rack/rack/blob/master/lib/rack/session/abstract/id.rb#L296