Add eslint dev tool with a basic eslint config

Author: pcardune

.eslintrc

@@ -0,0 +1,21 @@
+{
+  "parser": "babel-eslint",
+  "rules": {
+    "comma-dangle": 0,
+    "indent": [2, 2, {"SwitchCase": 1}],
+    "linebreak-style": [2, "unix"],
+    "semi": [2, "always"],
+    "no-console": 0
+  },
+  "env": {
+    "es6": true,
+    "browser": true,
+    "node": true
+  },
+  "extends": [
+    "eslint:recommended",
+  ],
+  "parserOptions": {
+    "ecmaVersion": 6,
+  },
+}

package.json

@@ -33,7 +33,10 @@
     "selenium-webdriver": "^2.41.0",
     "url.js": "^1.0.2"
   },
-  "devDependencies": {},
+  "devDependencies": {
+    "babel-eslint": "^6.0.4",
+    "eslint": "^2.12.0",
+  },
   "scripts": {
     "postinstall": "make -j3 web",
     "test": "echo \"Error: no test specified\" && exit 1"