Merge pull request #125 from mozilla/feature/gltf-model-plus

src/assets/stylesheets/2d-hud.css

src/components/debug.js

src/components/gltf-bundle.js

src/components/gltf-model-plus.js

src/components/player-info.js

src/gltf-component-mappings.js

src/hub.html

src/hub.js

src/react-components/2d-hud.js

src/react-components/avatar-selector.js

webpack.config.js

yarn.lock