c9 npm boilerplate

"scripts": {
    "pug": "pug assets/_pug --out build/ -P -w",
    "scss": "node-sass assets/_scss/ -o build/css -w",
    "serve": "browser-sync start --host $IP --port $PORT -s 'build' -f 'build'",
    "dev": "parallelshell 'npm run pug' 'npm run scss' 'npm run serve'"
  },