Release 2.0.1

No significant functionality changes, just a radical restructuring of the UI to massively simplify the CSS and HTML, and apportion UI management responsibility within the code. The faster UI should be more responsive, which should help with any outstanding timing issues.

Release 2.0.0

For a long time we've been relying on git versioning to identify versions, however this makes it difficult to reproduce problems so henceforth releases will carry a version number.