Sort the CA bundle in preparation for updating it.
Update CA certificates bundle to 20130906.

http://www.ubuntu.com/usn/usn-2154-1/
https://gist.github.com/ab/9756531
Verify the fingerprint on api.stripe.com before making any requests
Merge pull request #128 from stripe/richo-blacklist-certificates

blacklist certificates
Bump version
Document our approach to SSL preflighting
Add Travis CI badge to the README
Construct the recipient card URL if the recipient property exists.
This needs to be a respond_to? instead.
Add tests for cards
Merge pull request #136 from stripe/recipient-cards

Construct the recipient card URL if the recipient property exists.
Bump version.
Added support for transfer cancelation
Cleaned up transfer tests
Merge pull request #137 from stripe/stephen-transfer-cancelation

Added support for transfer cancelation
Bump Version
Don't check blacklist if SSL verification is off

It's helpful to be able to test the bindings with instances of the
Stripe API running locally, or running on a server that doesn't support
SSL. When :verify_ssl_certs is false, don't check the SSL cert against
the blacklist, as there probably isn't a certificate to check.
Merge pull request #139 from stripe/truly_disable_ssl

Don't check blacklist if SSL verification is off
Add support for refund resource
Merge pull request #140 from stripe/kjc-add-refund

Add support for refund resource