Add ESLint config.

.eslintrc.js

@@ -0,0 +1,46 @@
+module.exports = {
+    "env": {
+        "browser": true,
+        "es6": true,
+        "node": true
+    },
+    "extends": ["eslint:recommended", "plugin:react/recommended"],
+    "parserOptions": {
+        "ecmaFeatures": {
+            "experimentalObjectRestSpread": true,
+            "jsx": true
+        },
+        "sourceType": "module"
+    },
+    "plugins": [
+        "react"
+    ],
+    "rules": {
+        "indent": [
+            "error",
+            2
+        ],
+        "linebreak-style": [
+            "error",
+            "unix"
+        ],
+        "quotes": [
+            "error",
+            "single"
+        ],
+        "semi": [
+            "error",
+            "always"
+        ],
+        "comma-dangle": [
+            "error",
+            "always-multiline"
+        ]
+    },
+    "settings": {
+        "react": {
+            "pragma": "React",
+            "version": "15.0"
+        }
+    }
+};

index.js

@@ -1,15 +1,14 @@
 import 'babel-polyfill';
 import React from 'react';
 import { render } from 'react-dom';
-import { Provider } from 'react-redux';
 import { createStore, applyMiddleware } from 'redux';
 import thunk from 'redux-thunk';
 import { AppContainer } from 'react-hot-loader';
 
 import rootReducer from './src/reducers';
 import Root from './src/containers/Root';
 
-window.geckoProfilerPromise = new Promise(function (resolve, reject) {
+window.geckoProfilerPromise = new Promise(function (resolve) {
   window.connectToGeckoProfiler = resolve;
 });
 

package.json

@@ -25,6 +25,9 @@
     "bisection": "0.0.3",
     "browserify": "^12.0.1",
     "chai": "^3.5.0",
+    "eslint": "^2.9.0",
+    "eslint-config-google": "^0.5.0",
+    "eslint-plugin-react": "^5.1.1",
     "express": "^4.13.4",
     "live-server": "^0.8.2",
     "memoizesync": "^0.5.0",