Update API to 2.11

[max8hine]

Please update this lib to match Recurly API 2.11

Few important API endpoints missing, like Shipping Address API

[ratrock]

Just got the notice that Recurly is deprecating 2.7 in November. Is upgrading something you're interested in and/or want help with?

[bhelx]

Hey everyone [Recurly Employee here]. I'm happy to help review some code to get this library upgraded. I did want to point out that we are launching a new major version of the API later this year and we are currently providing an "early access" phase for those interested. In this new version, we are officially supporting a node client: https://github.com/recurly/recurly-client-node . It's something you might want to look into as it will be GA soon and we will be recommending all new customers use it. Here is some info about early access https://dev.recurly.com/page/recurly-v3-api-early-access . You can also email us if you have questions dx@recurly.com

Of course, we will continue to support V2 and make regular updates to it. And I'll try my best to support these open source libraries that people have been relying on.

[bhelx]

Just want to follow up that 3.0.0 is live now and node client is released:
https://github.com/recurly/recurly-client-node
https://recurly.github.io/recurly-client-node/