Noissue - bundle in one operation to ensure no races

package.json

Index: package.json
===================================================================
--- a/package.json
+++ b/package.json
@@ -1,20 +1,22 @@
 {
   "name": "adblockplusui",
   "private": true,
   "description": "Adblock Plus UI",
   "scripts": {
+    "bash:js": "eslint ./js/**/*.js && bash -c 'echo \"/* eslint-disable */$(browserify --node --no-bundle-external $0)\">$1'",
+    "bash:css": "node-sass --output $1 $0",
     "lint": "npm run lint:js",
     "lint:js": "eslint ./*.js ./lib/*.js ./ext/*.js",
     "prepare": "python2 ensure_dependencies.py",
     "start": "http-server & npm run watch",
     "bundle": "npm run bundle:desktop-options.js && npm run bundle:desktop-options.css",
-    "bundle:desktop-options.css": "node-sass --output skin css/desktop-options.scss",
-    "bundle:desktop-options.js": "eslint ./js/**/*.js && echo '/* eslint-disable */// BUNDLED FILE'>./desktop-options.js && browserify --node --no-bundle-external js/desktop-options.js >> ./desktop-options.js",
+    "bundle:desktop-options.css": "npm run bash:css ./css/desktop-options.scss ./skin/desktop-options.css",
+    "bundle:desktop-options.js": "npm run bash:js ./js/desktop-options.js ./desktop-options.js",
     "watch": "npm run watch:desktop-options.js & npm run watch:desktop-options.css",
     "watch:desktop-options.css": "watch 'npm run bundle:desktop-options.css' ./css",
     "watch:desktop-options.js": "watch 'npm run bundle:desktop-options.js' ./js",
     "postinstall": "npm run bundle"
   },
   "devDependencies": {
     "browserify": "^16.1.0",
     "eslint": "^4.16.0",