Fix typo, postgrs <-> postgres
Minimum ruby requirement is 1.9.3 [ci skip]
Add spree_frontend and spree_backend into README.md [ci skip]
Bump rubygems requirement to 1.8.25 [ci skip]
Bump rails to 3.2.12
creating order through API as guest #2545
returning correct error message if cannot transition from cart to address
[Fixes #2551] [api] Specs to ensure a user or email can be assigned to an order
Travis test with Ruby 2.0
Adding additional common Bogus Credit Card Numbers

Fixes #2543