Legend and label improvements, fix of known issues, improved example

v1.3.1

Improvements in the example project.

Introducing legends, viewport setup and general improvements.

v1.2.1

Update README.md

Introducing y-axis scaling, scatter charts, advanced styling, finger-drawing, data filtering

v1.1.1

Merged readme.

First release. Introduced DataSets.

v1.0.1

Update README.md