Modify index.js to support include_paths

[jacooobi]

As listed in spec

[fhwang]

It bums me out that we don't have real specs for these JS-driven engines. That being said, assuming the Circle CI issue can be fixed, LGTM.

[jacooobi]

@fhwang I think we had a similar problem in codeclimate CLI repo, it was resolved by editing the circle.yml. All gcloud related commands were removed from pre and are used only during deployment. Check it out here

[ABaldwinHunter]

@jacobi007 sorry! I didn't realize that github commit words could deal the samurai death star of closing a PR.

I updated the circle file on this repo, so if you rebase, we should see tests pass and then can merge on green.

[jacooobi]

@ABaldwinHunter done!