Fixes #532

* Update Jest

* Remove default snapshot test

* Fix a few things

* Add a simple default test

* App.spec.js -> App.test.js

* Fix e2e test

* Bump Jest

* Load favicon through html-loader.

Fixes #291.

* Add test for *.ico in e2e test suite

* Configure html-loader to process <link href="...">

* Address feedback on html-loader inclusion.

* Place favicon.ico at the root of the build dir

* Make comment style consistent between prod and dev webpack configs

* Fix html-loader config in dev mode

* Use /static paths for assets

* Fix e2e test

I think this should solve #258

* Improve error handling in E2E script

* Expose e2e.sh as npm test script

* dogfood eslint config

* moved linting to e2e