Updates (#57)

* Travis CI: add Node.js 10.x.

* Move eslint mocha where it's needed.

* Update devDependencies.

Notes:

* package-lock.json is saved with npm 6.3.1, the one that ships with node.js 10.x
* eslint 5.x doesn't support node.js 4.x, so don't update it

.travis.yml

@@ -3,6 +3,7 @@ os:
   - linux
   - osx
 node_js:
+  - "10"
   - "8"
   - "6"
   - "4"

package.json

@@ -17,9 +17,9 @@
   },
   "devDependencies": {
     "bin-check": "4.1.0",
-    "eslint": "4.10.0",
-    "lodash": "4.17.4",
-    "mocha": "4.0.1"
+    "eslint": "4.19.1",
+    "lodash": "4.17.10",
+    "mocha": "5.2.0"
   },
   "scripts": {
     "test": "eslint . && mocha",
@@ -36,8 +36,7 @@
   "eslintConfig": {
     "extends": "eslint:recommended",
     "env": {
-      "node": true,
-      "mocha": true
+      "node": true
     },
     "parserOptions": {
       "sourceType": "module"

test/index.js

@@ -1,3 +1,5 @@
+/* eslint-env mocha */
+
 const assert = require('assert');
 const binCheck = require('bin-check');
 const hugoBin = require('../');