Added eslint with airbnb configuration.

.eslintrc.json

@@ -0,0 +1,22 @@
+{
+  "parser": "babel-eslint",
+  "extends": "airbnb",
+  "env": {
+    "browser": true,
+    "mocha": true,
+    "node": true
+  },
+  "rules": {
+    "brace-style": [2, "stroustrup"],
+    "comma-dangle": "off",
+    "compat/compat": 1,
+    "jsx-a11y/no-marquee": 0,
+    "react/jsx-filename-extension": ["error", { "extensions": [".js", ".jsx"] }]
+  },
+  "plugins": [
+    "compat",
+    "import",
+    "jsx-a11y",
+    "react"
+  ]
+}

package.json

@@ -3,7 +3,14 @@
   "version": "0.1.1",
   "private": true,
   "devDependencies": {
-    "react-scripts": "0.7.0"
+    "babel-eslint": "^7.1.1",
+    "eslint": "^3.15.0",
+    "eslint-config-airbnb": "^14.0.0",
+    "eslint-plugin-compat": "^1.0.1",
+    "eslint-plugin-import": "^2.2.0",
+    "eslint-plugin-jsx-a11y": "^4.0.0",
+    "eslint-plugin-react": "^6.9.0",
+    "react-scripts": "^0.7.0"
   },
   "dependencies": {
     "material-ui": "^0.16.4",