Our build machine seems to have a problem pulling down GitHub dependencies
via NPM, so reverting this until I can diagnose and resolve that.

This reverts commit e02d6d40, reversing
changes made to eda4fc74.

* Removed handlebars Plugin, upgraded to Webpack 4, use Dotenv, fix HTTPS

* Remove webpack.dev.js

* Add git repository to package.json

* Basic onboarding scaffolding.

* Update aframe dep and yarn.lock.

* Make handlebars template plugin more flexible. Add crc hash to urls. Add origin trials. Add smoketest.

* Add origin trial token documentation

* Update readme to use crc hash.

* Correct smoketest urls.

* Move templatre generation into common and add env var to generate smoke tests.

* Move vendor assets into separate bundle. Clean public directory on build. Extract and optimize css. Move back to Uglify.

* Fix extract text plugin in dev.

* Update CONFIG comment

* Added webpack file loader and lobby background.

* Copy assets directory into public folder on build. Fix file-loader config to point at copied folder.

* Fix for webpack-dev-server when copying assets.

* Fix setting environment variables on windows.

* Add HandlebarsTemplatePlugin and asset helper.

* Recompile on template change.