lint: apply standard 11 style

Author: dougwilson

package.json

@@ -13,12 +13,12 @@
   "devDependencies": {
     "benchmark": "2.1.4",
     "beautify-benchmark": "0.2.4",
-    "eslint": "3.19.0",
-    "eslint-config-standard": "10.2.1",
-    "eslint-plugin-import": "2.8.0",
+    "eslint": "4.19.1",
+    "eslint-config-standard": "11.0.0",
+    "eslint-plugin-import": "2.11.0",
     "eslint-plugin-markdown": "1.0.0-beta.7",
-    "eslint-plugin-node": "5.2.1",
-    "eslint-plugin-promise": "3.6.0",
+    "eslint-plugin-node": "6.0.1",
+    "eslint-plugin-promise": "3.7.0",
     "eslint-plugin-standard": "3.0.1",
     "istanbul": "0.4.5",
     "mocha": "2.5.3",