title: node-RED port number
body: <p>Can we set port number of node-RED is same with another port number?
  ex: test.js is running on 1880 port number, and then node-RED port number is 1880 too. but httpRoot will be actived,so when I run the node-RED, I use 127.0.0.1:1880/red. Is it possible? 
  Thank you</p>