Merge pull request #393 from mozilla/feature/device-xfer-follow

src/assets/stylesheets/index.scss

src/assets/stylesheets/link.scss

src/assets/stylesheets/shared.scss

src/assets/translations.data.json

src/hub.js

src/link.html

src/react-components/entry-buttons.js

src/react-components/home-root.js

src/react-components/link-root.js

src/react-components/ui-root.js

src/utils/disable-ios-zoom.js

src/utils/vr-caps-detect.js