Setup CD deploys of the backend

[acorncom]

We may need to work through what we're wanting to do here, but it would be nice to replace the api build setup in the emberjs/website repo

[toddjordan]

This is a wrapper issue for ember-learn/ember-jsonapi-docs#17
Where we need to deploy our data statically to S3

[toddjordan]

Also see emberjs/website#2828

[sivakumar-kailasam]

The backend push via travis is now operational. We're tracking publishes via build pipeline with ember-learn/ember-jsonapi-docs#30