set linting env to Browser

Author: goto-bus-stop

.eslintrc

@@ -1,6 +1,9 @@
 {
   "extends": "airbnb-base",
   "parser": "babel-eslint",
+  "env": {
+    "browser": true
+  },
   "globals": {
     "API": false
   },

src/plugins/PlaybackEventsPlugin.js

@@ -4,7 +4,8 @@ import Plugin from '../Plugin';
 
 const PlaybackEventsPlugin = Plugin.extend({
   name: 'Playback Events',
-  description: 'Add internal events for some playback-related actions: refresh, snooze, toggling HD video.',
+  description: 'Add internal events for some playback-related actions: ' +
+    'refresh, snooze, toggling HD video.',
 
   init(id, ext) {
     this._super(id, ext);