TO-DO list

Scatter Plot (done)
Scatter Plot show/hide series
Line Chart logarithmic axis
Instructions with Qt Help Assistent
Languages
Arduino Library
Map Widget
Temperature widget
Speed-o-meter type widget
Data Table
Save dashboard picture
Save widget picture
"Are you sure dialog" when closing widget
Multiple serial ports??? (maybe)
Line Chart add a margin to calculated range
Forbid entering whitespace for widget IDs (Important)

Future improvements

Timestamp in Line Charts with QtCharts module (currently impossible, due to Qt limitations)