* Update autoprefixer to version 7.1.6

* Update babel-plugin-preval to version 1.6.1

* Update babel-plugin-transform-react-remove-prop-types to version 0.4.10

* Update babel-preset-env to version 1.6.1

* Update cross-env to version 5.1.1

* Update enzyme-adapter-react-16 to version 1.0.2

* Update eslint-plugin-import to version 2.8.0

* Update immutable to version 3.8.2

* Update express to 4.16.2

* Update intl-relativeformat to version 2.1.0

* Update postcss-loader to version 2.0.8

* Update react-immutable-pure-component to version 1.1.1

* Update react-motion to version 0.5.2

* Update react-notification to version 6.8.2

* Update react-overlays to version 0.8.3

* Update react-redux-loading-bar to version 2.9.3

* Update resolve-url-loader to version 2.2.0

* Update style-loader to version 0.19.0

* Update webpack to version 3.8.1

* Update webpack-dev-server to version 2.9.3

* yarn upgrade