Make 0000 default post code for everyone if missing
Update test name
Cybersource gateway: Add subscription credit

Cybersource allows a stand-alone/general credit to be done against a
subscription reference, and this adds support for that functionality to
the ActiveMerchant gateway. Note that this replaces the deprecated usage
of #credit.

Closes #499.
Rewrite generate to use Thor rather than Rubigen

Rubigen was minimally maintained, and Thor is better maintained as well
as being the generator framework used by Rails since 3.0. This should
also fix generating gateways when using newer versions of ActiveSupport,
since Thor has no dependency on ActiveSupport at all (see #453).

Closes #453, #502.
Psigate gateway: Add void support

Closes #503.
do not send the email parameter with a charge. also, load the slice function for tests.
Use money 5.0 on ruby 1.8
Add Liqpay integration

https://liqpay.com/

Closes #496.
Paypal Express gateway: Add shipping accessor

Adds an accessor to the Instant Update API response to access shipping
information.

Closes #504.
fix path of gateway remote test in generator
Merge pull request #506 from freerunningtechnologies/generator_path

Fix gateway remote test path in generator
PayPal: Fix test failing due to timezone

Closes #508.
Added PaypalRecurringApi to PaypalExpressGateway
Add unit tests for MultiResponse
Only add tax option if it's passed in
Bump for release
Add Code Climate badge to README
Stripe gateway: Decouple test from AM version

Closes #518.
Add eWay Rapid 3.0 gateway

http://www.eway.com.au/developers/api/rapid-3-0

Closes #519.
AVS response needs to have the keys for the object in the hash returned, even if they are nil

8cf277a broke this expectation, now there are tests to cover the case.

A MultiResponse test needed to be fixed because of this change as well,
it shouldn't affect the interface or how AVSResult/CVVResult are
returned.