* Update axios to version 0.16.2

* Update css-loader to version 0.28.4

* Update postcss-smart-import to version 0.7.4

* Update react-immutable-pure-component to version 0.0.5

* Update stringz to version 0.2.1

* Update style-loader to version 0.18.1

* Update websocket.js to version 0.1.9

* yarn upgrade