Upgrade to Create React App 2.1.1 & React 16.6.3

react-ui/package.json

@@ -2,18 +2,24 @@
   "name": "react-ui",
   "version": "0.1.0",
   "private": true,
-  "devDependencies": {
-    "react-scripts": "^1.1.4"
-  },
   "dependencies": {
-    "react": "^16.4.1",
-    "react-dom": "^16.4.1"
+    "react": "^16.6.3",
+    "react-dom": "^16.6.3",
+    "react-scripts": "2.1.1"
   },
   "scripts": {
     "start": "react-scripts start",
     "build": "react-scripts build",
-    "test": "react-scripts test --env=jsdom",
+    "test": "react-scripts test",
     "eject": "react-scripts eject"
   },
-  "proxy": "http://localhost:5000"
+  "eslintConfig": {
+    "extends": "react-app"
+  },
+  "browserslist": [
+    ">0.2%",
+    "not dead",
+    "not ie <= 11",
+    "not op_mini all"
+  ]
 }