Add nodemon for continuous development support

[vishwaefor]

Steps

• Step 1 Add monemon using npm install nodemon --save

• Step 2 Change package.json scripts as follows

  "scripts": {
  "start": "nodemon ./bin/www",
  "debug": "node --nolazy --inspect-brk=9229 ./bin/www"
  }

Now the server will restart when a change is triggered