Simple nodejs DAQ Control

Installation:

  - Install nodejs and npm (ubuntu something like apt install nodejs npm)
  - In source directory 'npm install' to install dependencies
  - If needed change database connectivity in app.js
  - npm start opens the test server on port 3000 of your machine

Environment variables:
  - Often set in `/etc/apache2/envvars`

I followed this tutorial to get started:
https://closebrace.com/tutorials/2017-03-02/the-dead-simple-step-by-step-guide-for-front-end-developers-to-getting-up-and-running-with-nodejs-express-and-mongodb