chore(eslint): allow ES6 for node scripts

.eslintrc-node.json

@@ -1,8 +1,13 @@
 {
   "extends": "./.eslintrc-base.json",
-
   "env": {
     "browser": false,
     "node": true
-  }
+  },
+  "parserOptions": {
+    "ecmaVersion": 2017
+  },
+  "plugins": [
+    "promise"
+  ]
 }

Gruntfile.js

@@ -174,6 +174,7 @@ module.exports = function(grunt) {
           'docs/**/*.js',
           'lib/**/*.js',
           'scripts/**/*.js',
+          '!scripts/*/*/node_modules/**',
           'src/**/*.js',
           'test/**/*.js',
           'i18n/**/*.js',

package.json

@@ -34,6 +34,7 @@
     "cz-conventional-changelog": "1.1.4",
     "dgeni": "^0.4.0",
     "dgeni-packages": "^0.16.4",
+    "eslint-plugin-promise": "^3.6.0",
     "event-stream": "~3.1.0",
     "glob": "^6.0.1",
     "google-code-prettify": "1.0.1",

yarn.lock

@@ -1994,6 +1994,10 @@ escope@^3.6.0:
     esrecurse "^4.1.0"
     estraverse "^4.1.1"
 
+eslint-plugin-promise@^3.6.0:
+  version "3.6.0"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-promise/-/eslint-plugin-promise-3.6.0.tgz#54b7658c8f454813dc2a870aff8152ec4969ba75"
+
 eslint@^3.0.0:
   version "3.15.0"
   resolved "https://registry.yarnpkg.com/eslint/-/eslint-3.15.0.tgz#bdcc6a6c5ffe08160e7b93c066695362a91e30f2"