Roadmap
- Show live data
- Show data history on Highstock graph (onConnect)
- Channel subscribe list separated & everything is calculated from that
- Proper (flattened) use of Promises (ES6)
- Database scaling (MEAN(...), GROUP BY time(...))
- Database scrolling backend (WHERE time > ... AND time < ...)
- Database scrolling frontend (afterSetExtremes)
- JSONP endpoint at /jsonp
- Bigger graph view