William Chargin 5d042c0008 Use isomorphic-fetch instead of node-fetch
Summary:
Paired with @dandelionmane.

Test Plan:
```
$ CI=true yarn test
$ yarn backend
$ GITHUB_TOKEN="<your_token>" src/plugins/github/fetchGitHubRepoTest.sh
```

wchargin-branch: isomorphic-fetch
2018-03-19 20:06:52 -07:00
..
2018-02-26 22:32:23 -08:00
2018-02-26 22:32:23 -08:00
2018-02-26 22:32:23 -08:00