Merge branch 'develop' into feature/jest-setup

.babelrc

package.json

scripts/generate-locale-messages.js

src/components/language-selector/language-icon.svg

src/components/language-selector/language-selector.css

src/components/language-selector/language-selector.jsx

src/components/menu-bar/menu-bar.jsx

src/containers/language-selector.jsx

src/index.jsx

src/languages.json

src/lib/intl.jsx

src/reducers/intl.js

webpack.config.js