Add linting

.travis.yml

@@ -1,4 +1,4 @@
 language: node_js
 node_js: node
-script: npm run test
+script: npm run lint && npm run test
 after_success: npm run coverage

package.json

@@ -10,6 +10,7 @@
     "build:map": "babel --source-maps=true -d dist src",
     "pretest": "npm run build:map",
     "test": "nyc ava test",
+    "lint": "eslint src",
     "coverage": "nyc report --reporter=text-lcov | coveralls",
     "prepublish": "npm run build"
   },
@@ -21,6 +22,9 @@
       "add-module-exports"
     ]
   },
+  "eslintConfig": {
+    "extends": "lukechilds"
+  },
   "repository": {
     "type": "git",
     "url": "git+https://github.com/lukechilds/node-browser-environment.git"
@@ -47,6 +51,8 @@
     "babel-plugin-add-module-exports": "^0.2.1",
     "babel-preset-es2015": "^6.9.0",
     "coveralls": "^2.11.9",
+    "eslint": "^2.11.1",
+    "eslint-config-lukechilds": "^1.2.1",
     "nyc": "^6.4.4"
   }
 }