Use standard with babel-eslint.

package.json

@@ -85,7 +85,7 @@
     "xo-collection": "^0.3.2"
   },
   "devDependencies": {
-    "babel-standard": "*",
+    "babel-eslint": "^3.1.9",
     "chai": "~2.1.2",
     "gulp": "git://github.com/gulpjs/gulp#4.0",
     "gulp-babel": "^5",
@@ -96,12 +96,13 @@
     "in-publish": "^1.1.1",
     "mocha": "^2.2.1",
     "node-inspector": "^0.10.1",
-    "sinon": "^1.14.1"
+    "sinon": "^1.14.1",
+    "standard": "^4.0.0"
   },
   "scripts": {
     "build": "gulp build --production",
     "dev": "gulp build",
-    "lint": "babel-standard",
+    "lint": "standard",
     "prepublish": "in-publish && npm run build || in-install",
     "start": "node bin/xo-server",
     "test": "mocha 'dist/**/*.spec.js'"
@@ -109,6 +110,7 @@
   "standard": {
     "ignore": [
       "dist/**"
-    ]
+    ],
+    "parser": "babel-eslint"
   }
 }