Update checkout controller override
Merge pull request #35 from ccschmitz/update_checkout_controller_decorator

Update checkout controller override
Fix undefined method single_money error. Fixes #36 Fixes #21
Use correct path helper to link to orders associated with card
send email when payment is captured
Remove old spec.
Update for current_order change.
Update readme asking for maintainer.
Update gitignore.
Spree 2.2.x support.
Fixes #51
Bump sass-rails.