chore(deps) migrate to react ^16.3 (#23)

Author: EugeneHlushko

dist/vote.bundle.js

@@ -45,8 +45,8 @@
     "node-sass": "^4.13.1",
     "optimize-css-assets-webpack-plugin": "^5.0.3",
     "postcss-loader": "^2.1.6",
-    "react": "^15.5.4",
-    "react-dom": "^15.5.4",
+    "react": "^16.13.0",
+    "react-dom": "^16.13.0",
     "sass-loader": "^6.0.3",
     "standard-version": "^4.2.0",
     "style-loader": "^1.1.3",

package-lock.json

@@ -50,7 +50,7 @@ export default class Dropdown extends React.Component {
         );
     }
 
-    componentWillMount() {
+    componentDidMount() {
         if ( document ) {
             document.addEventListener(
                 'click',

package.json

@@ -139,12 +139,6 @@ export default class Wrapper extends React.Component {
         }
     }
 
-    componentWillReceiveProps(props) {
-        if ( !this._supportedBrowser ) return;
-
-        this._updateList(props);
-    }
-
     /**
      * Fetch user information and available influence
      * 

src/components/dropdown/dropdown.jsx

@@ -13,14 +13,9 @@ export default env => Merge(CommonConfig(env), {
             commonjs2: 'react',
             commonjs: 'react',
             amd: 'react'
-        },
-        'react-dom': {
-            root: 'ReactDOM',
-            commonjs2: 'react-dom',
-            commonjs: 'react-dom',
-            amd: 'react-dom'
         }
     },
+
     plugins: [
         new OptimizeCssAssetsPlugin({
             assetNameRegExp: /\.min\.css$/g,